Yamaha ox66 throttle position sensor. this is on the starboard engine.

First thing to check is the oil pump linkage. 8 KΩ, mine read 1. the TPS gives the ECU information on throttle angle opening. Both look good and also put in new thermos just in case. every one of thses sensor,excluding the O2, is monitored for inrange operation. Items are sold as is shown and described above sold as is with no refunds or returns accepted. Dec 13, 2019 · At WOT tps volts are 3. 0+++ not to exceed 5. Oct 23, 2019 · Yamaha designed this to run only four cylinders as a fuel saver while trolling. 95 to 2. My question is which sensor does what and what alarm or warning will each give ?? Oct 29, 2006 · the yamaha digital tach is actually fairly accurate. Post Cancel 2000 Yamaha OX66 250HP SX250TXRY Sep 10, 2014 · r1-forum. -Atmospheric Pressure sensor. and holds. The VST filter is very fine and will become partially clogged from fuel degradation in the VST tank. The problem is the bike still won't idle or run smooth at all. 58 and . The buzzer never goes off, even when the ignition key is turned on and the kill switch is pull, not a chirp. There are wide band O2's out there now that give better readings. For multi-engine applications, our twin binnacle control offers convenient, one-hand operation of both throttle and shift functions, and offer automatic RPM synchronization and convenient, push-button activation of Neutral Hold, Speed Control with Pattern Shift, Trim Assist and Station Selection (if you have a second station). Do yourself a favor and buy the blinky light YB-06765 /90890-06765 ( part number may have changed). I was able to get readings by probing the wires but the adjustments would always change each time I ran the boat. 25. 3 to 0. if the CTS [coolant temp sensor] fails or becomes unplugged the system will set code 13 unless its Aug 20, 2010 · Re: Throttle Position Sensor could be bad? Personally, I would not worry about it. I compared to the port engine and the range is 0. 9 volts. Acceleration choppy, motor bogs down. Mine made it to 700 before they were beyond repair because the owners manual doesn't tell you how to care for your motor. May 16, 2016 · thanks for the input. shows proper assembly and disassembly. 10 KΩ. I backed the boat down the ramp and started it up just to see if it would run and the idle already sounds 10 x better than before. Manufacturer Brand New, Genuine Yamaha Part Manufacturer Part# 68V-85885-00-00 Item Number OEM670815 See all vehicles this product Oct 23, 2010 · Re: OX66 O2 Sensor Check A Yamaha service manual for your motor and the proper test equipment will do great things and save you tons of time and money. Apr 23, 2018 · Does anyone know the resistance range for a throttle position sensor on a 2003 OX66 200hp? I'm getting 50-300 ohms. I built this instead of buying the part from Yamaha. you'll find the electronic fuel pump inside the case. tested O2 sensor voltage. The screws are T-25 safety screws as I call them. Aug 30, 2006 · Hello all, thanks for this great site! I have researched linkage adjustment on my 99 250 ox66 and have found two answers to the same question. i swapped out pulsar Feb 25, 2007 · This engine is has approx. Jul 23, 2015 · Twin year 2000 OX66 225s, my third set of engines on this boat and they probably have 800 hours on them. 25 KΩ. 99% sure it aint not da switch. i ohmed coils, and replaced plug boots. One single tank. 15)} are percentages. May 29, 2008 · According to the Yamaha mechaincs manual not the owners manual the VST filter and O2 sensor should be cleaned every 200 hours. Jun 30, 2012 · They can answer questions for any Yamaha outboard model or horsepower. With no thermo-sensor: idle smooths out, but is high -1100 rpms -usually 850. 28 volts wot. Feb 3, 2022 · Symptoms Of A Bad Throttle Position Sensor. Adjusted the oil link rod. I addressed the fuel and oil pump issues first with improvement. 14) throttle closed! Late TPS 3P6-85885-00-00 = 2. org is not in any way affiliated with Yamaha Motor Company VerticalScope Inc. Jul 14, 2013 · Back the idle speed screw out until the throttle plate next to the screw is completely closed. I plan on checking the O2 sensor, changing out the plugs and checking the throttle position sensor. 467. I am not responsible for any damage to your bike or bodily harm to you! Use at your own risk! Tools Needed: If your machine is spitting and sputtering and running badly then most likely it is the Throttle Position Sensor. -Replaced VST. book 1 ページ 2018年11月1日 木曜日 午後2時21分 Jun 5, 2005 · I recently purchased a set of 1999 Yamaha 200 HP OX66 motors for my center console and this weekend I had the overheat alarm go off twice after extended running (15 minutes continous) at rpms above 4200. Ive searched high and low for more recent discussions on the matter but it seems they are all old and not very complete. Once I replaced the O2 sensor, everything came together. 5 volts with linkage disconnected, goes to 3. Sep 25, 2021 · Thermo Sensor; Both Thermo Switches; O2 sensor (see 9/25 update) Tested Throttle Position Sensor - (see 9/26 update) Checked thermostats for corrosion. the exception is the O2 sensor which has NO codes associated with it. NOTE - you need to make sure your throttle valves are fully closed for this tes This video will outline troubleshooting of the Throttle Position sensor and circuit for the Yamaha MX-V FI system, including error codes;P0122 – TPS Circuit Oct 29, 2019 · Ok Guys, I replaced Thermostats Alarm Sensors Water Pump New and improved poppit valve Removed heads and water jackets were clean and engine was clean of corrosion. the intake air sensor also gives oxygen density info. 7 volts. the crank position sensor tells the ECU where it is at. The primary TPS sensor is on the upper right side between the two right throttle bodies (with the wires going into it), and the secondary sensor is on the upper left side between the two left throttle bodies, it's attached to that black plastic cylindrical thing which is the secondary throttle servo. Checked spark and compression. 4k Ohms (2380-2400) Earlier TPS = 4~6k Ohms (4000-6000) Oct 9, 2008 · Read the Manual on setting the TPS. Offshore trolling a month ago the port engine showed signs of a fouled O2 sensor and/or bad LP pumps. 73V as previously described above (during a sea-trials with a voltmeter hooked up). Dec 15, 2018 · 0. Read this manual carefully before operating this outboard motor. when it stalls that very loud very annoying alarm horn goes off. test went to 70 down to 12. If it's not in spec adjust it accordingly. #1. from there,along with other sensor inputs, the ECU compares the engine RPM with the angle and attempts corrections to fuel delivery and timing to make the engine speed correspond to a program map. 13~0. Mar 20, 2017 · Also, the same for the O2 sensor. It also would lose 4mph of power wide open, Jan 13, 2011 · Re: Yamaha S250TXRX (1999 OX66 250) using 2x oil it should be O2 sensor is not the problem, that just makes adjustments at higher rpm range. I've had the bike over three years, and noticed the idle was always a bit rough despite new plugs and repeated throttle body synchronizations. That was back in 2010. com FREE DELIVERY possible on eligible purchases Amazon. Aug 21, 2017 · the TPS gives information on throttle angle. 62--do this by moving the TPsensor clockwise (loosen the two screws)re-tighten the screws and slowly open the throttle plates to wide open --you will hear a clicking noise--that is the sensor--- move one of the probes to the red wire--at WOT you should be at 5. Finally, the air gap between the sensor and the flywheel is checked to make sure it is within specification. But no injector operation. The oil linkage adjusts the oil mixture ratio depending on throttle position. The same as a TPS (throttle position sensor). com: Amrxuts 6C5-85885-00-00 TPS Throttle Position Sensor for Yamaha F60 F75 F90 TJR/LA/LHA : Automotive Jul 17, 2005 · Re: Engine control slipping on 2002 Yamaha 250 OX66 Saltwater Series Make sure your throttle is actually physically moving back in order to apply Rodbolt's solution. It is on the port side of the motor at the bottom of the powerhead. You can test this with a voltmeter putting the negative on the bottom wire and the positive on the middle wire. I then tested the TPS with the #1 throttle valve disconnected asper the Yammie manual. How about fuel pressure? And does the fuel pressure raise when reference hose is removed from pressure regulator on the VST? Is the gauge on your dash set to Jul 17, 2019 · Fix Attempt #1 - I found a post here describing resistance specs for throttle sensor (0-150 Ohms at rest, ~5,000 at full throttle). When attached to the valve its a steady 35. As your car idles, there should be relatively little movement in the position of the throttle. jet drive pump 2005 & older 4-stroke; jet drive pump 2005 & older 2-stroke; jet drive pump 2006 & newer 4-stroke Aug 9, 2007 · Re: Plug fouling ox66/250 I recommend checking the following at a minimum Throttle position sensor range & adjustment Oil pump adjustment Check thermostats Jan 1, 2016 · Yamaha helped me not at all. I am still going to check the O2 sensor and throttle position sensor. I adjusted the TPS to . The motor identity is a 2001 SX150TXRA Salt Water Series II. This is why the term " fly by wire " is used. Quick history: Throttle position sensor checked with 12 volts. Connect the negative test lead to the orange wire. ( knock on wood) I will take it out this weekend and do a long sea trial (or should i say fishing). How do you check fault codes on a Yamaha WaveRunner? How do you clear fault codes on a WaveRunner? (OX66) 39: Oil Pressure Sensor: 40: Throttle Position Sensor: Sep 11, 2023 · Item for sale is a throttle body with position sensor (66K-13751-00-00) off of a 2000 Yamaha OX66 250 hp 2 stroke outboard motor. 47 volts. May 13, 2014 · The spark plugs and o2 sensor fouls out with oil all over them. I observed this after running it. It's not designed as an all-inclusive step-by-step. 100 hours on it,and was running great then one day it just would not start. If the engine speed is slowly dropping back and the throttle is *not* moving, the problem is more likely a faulty or loose throttle position sensor. 800. The output peak voltage is then checked for specifications at various RPM's. With it in gear the rpms went to 1800 at full throttle. Here is a breakdown of the typical TPS location: Position on the Throttle Body: The TPS is typically positioned on the side of the throttle body facing the engine’s intake manifold. The ECU knows what the min and max range of values are. Although the factory manual states adjust the link against the stop with no clearance, I have found several sources (including the SELOC manual) stating . at about 3/4 throttle with no engine run signal the ECU goes into a flood clear stage and shuts the injectors off. The engine is being controlled entirely by the ECU, which only takes inputs via the throttle that is connected to a TPS ( a position sensor ) that the ECU reads. It will not start in neutral, only when the throttle is fully advanced, it then will only run 1400 rpm with throttle fully advanced. May 5, 2008 · Grizzly 700 Throttle Position Sensor adjustment / replacement: This is for reference only. It's used to test the Throttle Position Sensor setting. Check the ECM circuit for continuity: 128: TPS Sub Throttle Position Sensor Short: Throttle Position Sensor Engine speed is limited Dec 26, 2018 · 2- fuel pump assy 6e5-24410-03-00 element, filter 65l-24563-00-00 throttle sensor assy 61a-85885-00-00 crank position sender 61a-85895-00-00 6- injector assy with filters 65l-13761-00-00 Feb 14, 2019 · THROTTLE POSITION SENSOR, P/N 5006484 INSTALLATION INSTRUCTIONS. now I did this test several times and it varied from 61 to 76 open, and always returned to 12 closed except once only went down to 22 in fully closed. Manufacturer Brand New, Genuine Yamaha Part Manufacturer Part# 68V-85885-00-00 Item Number OEM670815 Jun 11, 2016 · 4. yamaha f115 throttle position sensor 07-17-2017, 12:53 PM I have a 115 outboard that will start if you advance the throttle forward or reverse from the top position leaving it in neutral. out of the box my F150 stalled when small throttle movements were made such as docking. 50 volts. May 11, 2009 · Re: VST filter question 250 OX66 you should really get a yamaha manual. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. We stock all of our products and ship quickly (usually either the same day or next business day) from Massachusetts. Low pressure pumps (3) , O2 sensor, as well as a sensor called "altitude" (yes , there is one) will all affect low idle /smoothness of low idle when the motor firing has been retarded to 4 cylinders. 50v) and what the TPS reads at WOT will only be what the throttle position sensor position rotates to in the WOT position. 1 ~ . 68 volts on flat ground. Jul 11, 2006 · I spent countless hours trying to adjust the correct voltage for the TPS on a 98 OX66 250hp. So I ordered a Huskey throttle position sensor from amazon (JW2-H5885-00 Yamaha Throttle sensor), and installed yesterday. each one,excepting the O2 and CPS, has a 5v ref. Jul 2, 2011 · You want to set it to . com is generated by its users. Surged, low rpms, and would not run to full WOT under load. This throttle position sensor fits all Yamaha 70HP EFI 4-Stroke outboards made since 2010. Dec 10, 2020 · Hello, I finally thought I’d ask the forum about it, I’ve been running my yz250f for awhile with this “throttle position sensor” unplugged as that’s how I bought it off my buddy and it’s ran fine. Really appreciate the help thus far. Tilt/Trim works fine from the throttle control and the engine cowling. Don’t bother paying for repair. took me about 6 hours to figure it out. Check it out Jul 2, 2017 · The Yamaha book is good, but not great. Completely normal. I'll tell you what I know and what I've replaced. Mar 10, 2012 · You have to remove the silencer, disconnect the throttle cable, make sure the idle adjust screw is backed out and then look at the throttle plates to make sure they are seated correctly. Throttle Position Sensor TPS 6S1-85885-00-00 For Yamaha F150TLR F150JA F225TXR. I have a 1999 OX66 200 EFI. It connects to the throttle linkage. May 28, 2009 · 1999 Yamaha 250 OX66 05-28-2009, 10:38 PM We changed the throttle control sensor to see if when the flaps were opening they weren't activating the throttle Nov 15, 2009 · Re: Yamaha 225hp 2str Crank Position Sensor test DVA meter and the correct service manual for the 225 in question. 2001 250hp yamaha Product ID: 6X9-48207-00-00. May 18, 2018 · r6-forum. Firts off there is fuel and spark. You would think a clogged VCT would not give an intermittent condition like a malfunctioning sensor. Today I took the boat for a spin, and noticed the trim gauge was showing all the way up ( full bars). when cold,below about 113*F, that motor will idle about 1100-1200 RPM. The initial TPS voltage was . If I manually advance the #1 throttle valve to WOT it get 4. the filter assembly is attached to the bottom of the Thanks for the info, sounds very helpful. stuck at 0. The fuel system used electronic fuel injection manufactured by Nippon Denso. there is no good test for the knock sensor other than checking for a code AT the problem RPM. Max rpm in water 2k. It would be easy for an ECU to note if and when the output was greater or lower than this range which could set a code for a faulty sensor. Jul 7, 2014 · While I was down there I checked the resistance on the accelerator position sensor and the throttle position sensor, the thing is, is that the tolerance is not in spec according to the manual. 29-0. Not sure if the sensor is stuck, or even where its located. Specification: APS = 1. 96 and valve opening 72. 74 - OCV 75 - RCS 76 - RCS 77 - RCS 78 - RCS 79 - RCS 80 - RCS 81 - RCS 82 - RCS 83 - Tirm/Tilt Angle Mar 4, 2011 · Im looking for a how to on the throttle body sensor adjustment on a 06-07 r6. It has 2 trouble lights on the dash, High Temp, and Low oil, and of course the buzzer. Jul 22, 2010 · Re: 1998 Yamaha 225 OX66 SHUTS DOWN - Pressure & Amp readings Re: 1998 Yamaha 225 OX66 SHUTS DOWN - Pressure & Amp readings I finally picked up the fuel pressure tester. up position Comment. The 1994 motor just had the low pressure pumps, spark plugs, and fuel filters replaced. I don't know where to begin. Dec 28, 2009 · TPS- Throttle position sensor. Feb 12, 2022 · Model is V 200 TLRX This motor is hooked up to the standard old school analog gauge set. the ECU is seeing the rapid voltage increase when you rack the throttle at key on engine off and is group firing the injectors. Runs about 3 minutes, warms up and sputters and stalls out. Throttle Position Aug 17, 2017 · changed plugs, cleaned o2 sensor and bench tested, checked tps, the new plugs showed me i wasn't firing on the number 2 cylinder under compression because i had spark while testing with a spark light. I live on an island in a 3rd world country and do not have access to any mechanics with a computer to do a proper analysis. Mar 5, 2007 · re: 1999 ox66 200 yamaha The timing is controled by the throttle position sensor and the crank sensor. I have the service manual but im not sure on a couple of things. Don't they accomplish the same thing. com is an independent Yamaha enthusiast website owned and operated by VerticalScope Inc. Not sure what the OP's comments are about with respect to the crank position sensor (CPS). net Apr 12, 2013 · sub throttle thanks, had no idea this bike had on board computer diag. Sep 10, 2013 · Monday, I received a call-back from ANDY at Simyamaha and he said the TPS is set at closed throttle (. Between 1800 and 2200 is when it transition up to all 6 cylinders. Apr 27, 2014 · After talking with a Yamaha tech he said to try the throttle position sensor, if the problem was intermittent. org is generated by its users. -Throttle position sensor. On both the new and old TPS, resistance between the outer prongs read infinity. 3 valve opening. 2 to 0. Individual throttle plates may need adjusting. Content on fz09. I removed the cowling and the head seemed pretty warm but the tell tale pee-stream seemed fine. 5 volts), the ECU or ECM usually triggers these codes: P0120 – Throttle/Pedal Position Sensor/Switch “A” Circuit Yamaha - Throttle Sensor Assembly. 423. Did a synch and link, set the vacuum on the four cylinders closely, and adjusted the throttle position sensor to . r1-forum. He reports that his measurements exceed the minimum voltage values. 3371 Tech Support: 1. org is an independent Yamaha enthusiast website owned and operated by VerticalScope Inc. 19 – Incorrect Battery Voltage Yamaha 61A-85885-00-00 Throttle Sensor; 61A858850000 (Yamaha OEM Sensors, Throttle Position). If your motor is surging or lost some power, this may be your solution. 49-0. Mar 30, 2017 · It has 35-36 psi (gauge was jumping slightly) at idle and when you give it throttle. Content on r6-forum. It just fixes all the problems and comes with extra benifits as a bonus. 65 volts but the Mar 2, 2014 · Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. Disconnecting a sensor can set a code and cause the motor to run at a fast idle. Aug 14, 2010 · This is the best pic I could find, it's of the TB's looking up from underneath. Aug 7, 2013 · Instead of removing the throttle lever rod, can't you just disconnect the throttle cable link joint. I don't think it's really meant for the layman, though. 0 to 2. With the engine running on a flusher I Jul 13, 2024 · Located on the throttle body of the engine, the Throttle Position Sensor (TPS) is an essential component for monitoring throttle position accurately. i find it easier to remove mounting bolts to block but leave all fuel/oil lines connected. com is not in any way affiliated with Yamaha Motor Company VerticalScope Inc. The main relay is good the crank position sensor is also May 15, 2020 · Yamaha outboard HPDI O2 sensor remove,d and clean and re-installed. Content on r1-forum. I did a sync and link on the throttle body. 8 KΩ, mine was 0. Mar 31, 2016 · CMSP/MTC and Total Control IRC and ARC instructor and MSF Ridercoach 2014 FZ-09: received 9/24/13, Traxxion Dynamics AT20 fork cartridges, Penske shock, R1/R6 master cylinder, SSL lines, custom tail, T-rex frame sliders and case protectors, ThrottleMeister handlebar end weights, G2 Throttle tamer, ECU reflashed by Ivan, custom tank protectors, mirrors with turnsignals built-in, Renthal 828 Mar 11, 2011 · One of the biggest problems with the R1s is throttle position sensor (TPS) and as the stock ecu is the cause, this is my reasoning for talking about the YEC. I am considering replacing my O2 sensor on my 2000 SX250TXRY ox66 engine. com is not in any way affiliated with Yamaha Motor Company Oct 9, 2016 · Part 2, where I show how to test, and evaluate the throttle position sensor. soaked overnight in Ring Free and reinstalled. Jul 18, 2022 · TPS Sub Throttle Position Sensor Open: Throttle Position Sensor Engine speed is limited: Check the pink (P), orange (O), pink/black (P/B), and black/orange (B/O) ETV leads for continuity. It will continuously do this. The wide band is new. When the throttle is closed (idle) the oil linkage should be up against the stop. When I wired it up today the Bosch sensor wires matched mine exactly colors and all. They stayed in the full. 6 but slow to change. fz09. I'm having fun troubleshooting, wish I had more time to do it. once you try to engage the engine will die. 19 volts. I had a 250 ox66 for ten years. Rough Idling. OWNER’S MANUAL F225 LF225 F250 LF250 F300 LF300 LIT-18626-12-51 6CE-28199-3A-E0 6CE-9-3A-1E0. For the acceleration sensor it states 14 should read 12-22 at closed throttle and 97-107 at full throttle and 15 should read 10-24 and closed throttle 95-109 at full throttle. After that it would only start in neutral with some additional throttle. Throttle Sensor Genuine OEM Part 61A858850000, Boat, Engine, Fresh (478) 454-0084 Jan 14, 2009 · let me tell you how our normal OX66 troubleshooting goes, check spark,check compression fix the fuel system. using the "T" fitting in the line comming from the fuel pump to the bottom of the fuel rail it was very erratic. ) Checked throttle and crankcase position sensors (Were OK) My conclusion is that I did have fuel, oil pump, and O2 sensor issues. Jun 11, 2009 · Re: 200 Yamaha OX66RPM loss at WOT actually if you open the throttle with key on engine off very very slowly they normally wont buzz at all, rapidly and the all fire and thats the buzzing noise your hearing. Sep 28, 2021 · Drop off on acceleration and engine running rough. this is know because when I put in forward and give it throttle, it will immediately accelerate, then with throttle held in same position, it will drop rpms in a stepped fashion a couple of times until it is back to maybe double the idle rpms. Sep 16, 2014 · Motor defaults to limp mode. Connect the positive test lead of my Fluke Meter to the pink wire on the TPS. also turned ignition on and off several times(not in diag mode) and Nov 16, 2009 · I have the same problem on a 98 250, it will spin up to 5700 when cold it seems, when it goes into open loop it will run great up to about 5400 then it will back down to about 5000, I have had the motor since it was new and it always turned 5700, I have cleaned the entire fuel system, sent the injectors out to be cleaned and it still does this? also put in a new 02 sensor, any ideas? May 21, 2014 · ANY sensor failure,other than O2,will cause ign timing to increase from about 3-7*ATDC to 7* BTDC and cause a high idle. Once I get the sync back, the throttle position sensor adjustment would be next. Checked Poppet (see 9/26 update) Decarb can/hose method (see 9/26 update) Diagnosis done on #2: Nothing really. Checked the tps and crankshaft position sensor. Replacing the O2 sensor in those cases resolved the running issue after eliminating all other possibilities. 866. Stalling, surging, or hesitating while idling all can be caused by this unassuming sensor. Doesn't the manual say max rpm's in a range of 4500-5500? I understand closer to the high end would be better which you are at. So, how do you know when you have a failing throttle position sensor? Here are some of the most common symptoms of a bad sensor. More sophisticated models (fuel injected for instance) might have a another map that addresses how long the fuel injectors are to remain open at various engine RPM's, throttle positions, manifold pressures May 15, 2017 · Pressure regulator filter Yamaha oem Water temp sensor, verified it worked with meter and heat USED TPS Sensor, adjusted to . Mine read 22,000 regardless of pedal position. Feb 12, 2023 · How Do You Test A Throttle Position Sensor? The easiest way to see what’s going on with the throttle position sensor is to run the codes from the computer. 38~2. 4832 cdielectronics. I actually just tested the boat after replacing the low pressure fuel pumps. 7 volts at full throttle, engine in the on position not running, no change still surging at low rpms, hitting the primer bulb while it surges does not do anything either. Outcome of Fix Attempt #1 - Still no Oct 9, 2016 · Yamaha Outboard Ox66 250 HP - throttle position sensor test harness. -Serviced the 3 LP-fuel pumps-Replaced Fuel Pump Regulator/Resistor. Find the Yamaha WaveRunner fault codes in one chart! (OX66) 39: 39 - Oil Pressure Sensor: 40: 40 - ECU Processing Information (OX66) Throttle Position Sensor: Jul 28, 2016 · This is a carbureted model which does not use an intake manifold sensor or a throttle position sensor so that the map is for ignition only. resistance is ok but we always prefer running output voltage tests. -Compression Test. 62 at idle position ---closer to . this is on the starboard engine. Feb 10, 2021 · There are two readings you are looking for, a high and low ohm setting. On the yellow black wires the ohm setting should be 560 to 840 with closed throttle and 3000 to 4500 with wide open throttle. But the manual is talking about removing the entire bracket assembly, not just the trim Jan 2, 2005 · He didn't realize this and tried running the bike but it would not idle. 51 volts at closed throttle. 52 volts is the specification for the TPS output voltage with the throttle closed. It will also tell you any pending alarms that haven't been cleared. the coolant temp sensor gives info on block temp. com 1 - Normal (No Faults) 13 - Incorrect Pulsar Coil Signal 14 - Incorrect Crank Position Sensor Signal Apr 5, 2020 · Then is was O2 sensor, now it's TPS sensor. -Swapped CDIs with someone that's also running an OX66. Also stalls when you come down in RPM when approaching the dock. Changed LP pumps, cleaned O2, changed plugs, problem persisted. Apr 19, 2010 · That has all been fixed including the main internal components replaced. Jul 5, 2017 · 7) the throttle body housing gaskets were replaced and are new 8) new NGK sparkplugs that the engine calls for 9) checked and cleaned the VST filter 10) replaced the fuel lines, primer bulb, fuel tank pick-up 11) All the filter are new and clean 12) checked the map sensor for being out of range good 13) etc. we dont use impedance for ANY sensor tests on yamaha outboards. Read outs while forced to the stops of the throttle bodies is 4. Sep 15, 2009 · Re: '97 225 OX66 Yamaha WOT rpm loss with a twist Cousinabe, Even though it is obvious that the O2 sensor is functioning between 0. 048 volts idle to 5. 7. Jan 24, 2006 · They can answer questions for any Yamaha outboard model or horsepower. voltage varies now 0. So far we have replaced the CDI and O2 sensor. This When the OX66 was first announced for the 1985 season, electronic control was adopted for the fuel and ignition systems. Mar 23, 2015 · The engine will throttle up to 2000 rpms but once there the rpms start to drop back down and almost come back to an idle. They should both be tested and properly aligned per the service manual. Apr 4, 2016 · "Think of your TPS sensor as a device to tell your engine how much fuel to add to the mixture based off where it's orientation is. " Really? I'm hoping that's just poor translation. Yamaha specs say it should be set at . May 12, 2007 · Re: Throttle position sensor Yamaha 225 excel ymtek: Symptoms: Motor ok cold. Does the same thing when you hold the ****on down and bypass shift engagement. Oct 7, 2016 · Re: 2006 VX110 Deluxe Throttle Position Sensor Location I worked on many vx and still do with throttle not working, many different causes so the best way I found is to swap parts around with good known ones, it could be bad throttle sensor, bad throttle body, bad relay on top of fuse box and more often bad harness. Login or Sign Up Throttle Position Sensor voltage 01-24-2006, 02:09 PM. post whats going on and what leads to to any switch. added February 14, 2019 at 6:55 PM updated May Sep 27, 2023 · 2001 SX250 ox66&gt;&gt;&gt;&gt; There is an oil sensor in the remote tank and another sensor in the engine mounted tank . This Yamaha O2 sensor is a narrow band one which is typical in the auto world. 18 volt and 77. Aug 10, 2015 · The closed throttle adjustment of the TPS is linear and as such the numbers presented in the Yamaha Warrior Factory Service Manual {Max resistance x (0. Jun 23, 2013 · r1-forum. either study about what each sensor does or pony up the cash. What also sealed the deal was a Yamaha tech that told me he has come across OX66's that had good O2 sensor readings, but still caused the engine to run bad. that's pretty handy. If the input to the ECU is outside of the range it knows there is Yamaha - Throttle Sensor Assembly. The high setting should be 4 to 6k on the blue and black wires. May 5, 2020 · Buy Amrxuts 6C5-85885-00-00 TPS Throttle Position Sensor for Yamaha F60 F75 F90 TJR/LA/LHA: Throttle Position - Amazon. The best way to determine if these issues are caused by your throttle position sensor is to go to the source. 150-200 HP OX66 Yamaha Throttle Body/Injector Assy 2000-2005 67H-13751-00-00. The more throttle you give it the more it changes the position and tells the ECU to add fuel accordingly. 48 ~ 0. Every O2 sensor does the same thing with the same voltage output. this is pretty easy stuff. The mean percentage being 14% (0. Created Date: 20050427101614Z Apr 2, 2024 · The manual states for the throttle position sensor to go to 1 in diagnostics and make this value read 11-21. 58- . The Manual gives a voltage range for setting the TPS i believe the range is between . Do you think its time to replace the tps? the boat runs great otherwise. A Yamaha tech will tell you that the TPS switch is back or out of tune. Customer Support: 1. Repair Time: 30 to 60 mins. 131 - APS/ETV 132 - APS/ETV 133 - APS/ETV 134 - APS/ETV 135 - APS/ETV 136 - ETV ETS. Installed Temp Gauge Installed Water Pressure Gauge Water Pressure runs steady at 20-25 LBS infra red therm does not go over 135 degrees from all parts of May 12, 2015 · A test harness is generally attached to the sensor, between the sensor and the wire harness. Oct 23, 2010 · "no codes no faults. Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. code 33 will be flashing. Aug 1, 2021 · In this video I will show you how to adjust and set the throttle position sensor on a 2002 Yamaha OX66 225HP per the factory spec . Adjust sensor until correct reading is attained. 2 to 2. Sep 19, 2014 · Hey Guys, I hate to beat a dead horse and start YET ANOTHER OX66 o2 sensor thread. The o2 sensor bench tested good. Mar 9, 2020 · I installed a new trim cam sensor since the original was cracked . yes there is a difference between impedance and resistance. After realizing the TPS wires were pulled out of the sensor, he took the sensor apart, re soldered the wires in place, made sure no contacts were touching each other and put the TPS back togethor and on the carb. Something else I learned is that TPS is ridiculously sensitive! Aug 17, 2014 · The O2 sensor on the ox66 is a narrow band sensor. 040 clearance with the throttle valves closed. Repair Difficulty: Easy. 2004 OX66 will not start The problem turned out to be the Throttle Position Sensor(TPS Jul 28, 2015 · When the boat is parked I tilt the motor all the way up to keep the lower unit out of the water. Back probing the wires is slipping the small probe/ paper clip into the back side of the connector where the wires go in, along the edge of the wire far enough to make contact to the conductor NMEA 2000 GATEWAYS AND SENSOR KITS; YAMAHA COMMAND LINK GAUGE COVERS; Throttle Position Test Harness Part # YB-06857 Previous part numbers: YB-06443, 90890-06857 Aug 4, 2014 · 2000 Yamaha 225 ox66 idles great bogs off idle. TPS maybe suspect probably should check. It was still set at the original break in from the dealer. I looked in mine, and while it doesn't mention anything about the motor, I can understand why you're confused. How do you reset the check engine light on a Yamaha outboard? Get all the answers! Incorrect Throttle Position Sensor Signal. I’m now just trying to give her some love and figured the engineers at Yamaha didn’t put it on for n 126 - TPS Throttle Position Sensor Character Fail 127 - TPS Sub Throttle Position Sensor Open 128 - TPS Sub Throttle Position Sensor Short 129 - ETV MTPS. Oct 2, 2011 · OX66 O2 sensor, TPS testsgood or bad? I adjusted and sync'd the throttle valves. I have never been able to reach the top at 5500 but can get to 5300 and that is early in the season, April/March. 78 volts . jet drive pump models. If you have a TPS fault, it will tell you. This person basically just used a standard Bosch sensor and put the Yamaha connectors on it. Max rpm 5k. I have cleaned the o2 sensor which was very dirty and had some oil in it. Jan 5, 2012 · The ECU takes your throttle inputs and translates it into the best action at that time, in order to improve performance. </p> <p> </p> <p>For Questions or Customer Service Contact Stroud's Marine at (252)751-0415</p> <p>Engine model: LX250TXRY</p> Jul 20, 2023 · OX 66 2 stroke year 2000 Runs fine slow , when I want too open it up between 2500 & 3000 rpms engine does not open up , slowly moving throttle , once over 3000 it opens jolting passengers , After it passes that point runs fine , I see others turning sensor just a bit , Others remove and bench test noticing reduced most likely, it AINT da switch. Specification: TPS = 1. check your test harness. the O2 sensor test MUST be made with the boat running at its normal range and with a warmup period of about 10 minutes. Apr 21, 2018 · Yamaha TPS - Throttle Position Sensor - is one of those topics that you never heard about, until it leaves you high and dry by the side of the road with no w Similarly, if your engine struggles to idle efficiently, it could also be a result of a damaged throttle position sensor. So, i guess it depends on what the motor is doing. Third, if the temperature sensor is bad, the motor doesn't know it has warmed up. It will go out on you very shortly after repair. what about the throttle position sensor? im really not sure where to go with this? its all new gas (100 gallons Feb 15, 2013 · On page 7-12 of my shop manual under "ADJUSTING THE THROTTLE POSITION SENSOR" there's a tip that says "Before adjusting the throttle position sensor, the throttle bodies must be removed. -Intake Air Temperature sensor. so when I did the first test numbers were:34 at start. The resistance of the sensor can also be checked. Not running or idling properly, The starboard bank of plugs are very clean and wet with gas, the port Bank of plugs are black and dry. once warm the RPM will drop to the designated idle speed and code 1 will be displayed if everything is happy. -Different Cranking Batteries. So after checking it multiple times to make sure it was staying the same, I opened it up to full throttle and pinched the return line going from the rail to the vst. Sep 7, 2016 · Disconnected the throttle position sensor to test it out and hope that default mode would prove that was the issue (noticed a difference but problem still persists). . The correct meter reading is 0. You must set the system voltage with the system contected (circut complete) by back probing the TPS connector. NONE of the shift cut nor shift positions will kill the engine. If I disconnect the throttle cable i can push the throttle bodies a bit more by hand but not much. 2000 Yamaha OX66 225 Buy YAMAHA OEM SENSOR THROTTLE - 61A-85885-00-00 FREE Shipping on qualified orders - Boats. Nov 30, 2010 · It stalls as the throttle is applied just after you have put in gear. In other words, ANDY said that as long as the TPS goes up/down with the rotation of the throttle plate, it's fine. r6-forum. I had it out for about an hour and no cut outs. If the throttle position sensor sends a low voltage signal (less than 4. I have installed a brand new CDI unit,the fuel pressure is 35,4 psi. They can answer questions for any Yamaha outboard model or horsepower. Using an air temperature sensor and an engine speed sensor, it issued corrections based on the position of the throttle valves. remove the phillips head screws to seperate top from bottom. 4 v. It will then jump back up to 2000 and drop back. Sep 16, 2016 · fz09. It ran like brand new for 20 minutes and would start up perfectly 3 or four times moving around different fishing spots. -Charge Coil Voltage. Mainly the bit about connecting to C size batteries to the throttle servo motor. That makes sense now. Do the throttle bodies actually need to be removed for Dec 16, 2018 · 0. My understanding is that the throttle/gear position sensor could be bad while not allowing the final 2 cylinders to kick in. compression test showed good, switched injectors and problem stayed in number 2. Title: VZ200/225/250/300 Owner's Manual Author: YMC Ltd. Replaced the VST filter, tested fuel pressure (steady 35psi). All good. once I figured out its a lean condition,due to the fact it would restart without opening the throttle, I had to start playing. Apr 20, 2016 · Most O2 sensors output . , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Sep 6, 2020 · I replaced the throttle position sensor on my bike, with about 66K miles. ceidr eubjv svzo gzpy tctrut yzvfgt daus uazw uwqji uhshfa