Yamaha Motorcycles - Recent Questions, Troubleshooting & Support

Faulty spark plug or lead!

Yamaha... | Answered 18 hours ago

Hi, Delio and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
8. Damaged petcock diaphragm allowing fuel to flow through the vacuum line into the combustion chamber.
9. Contaminated fuel tank.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Fuel leaking from carb overflow on my TT R225
Carburetor Carb Leaking Gas How to Fix Repair it Motorcycle Honda DIY...
1986 1987 YAMAHA TT225 TT 225 Service Manual Repair Manuals Ultimate... $15

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Yamaha TT-R 225... | Answered on May 17, 2020

I think your best way to go this site wemoto.com. You could easliy your yamaha spares...........

2008 Yamaha... | Answered on May 16, 2020


Yamaha... | Answered on May 07, 2020

The YZ is a dirt bike as is. The WR is a street bike and has more accessories on it.
  • Remove the body parts you do not want to get broken. Turn signals, tail light, speedometer, tachometer and mirrors are the main things. Fenders and headlight are possibilities also but the fenders tend to keep mud off the the engine and your body while the headlight allows you to ride at night.
  • Change to a larger rear sprocket. Two or three teeth will make a difference. This will make the bike to " quicker " off the line and out of turns and provide more torque than stock. Top end is a bit slower but with all the twists and turns you seldom get to top speed anyway.
  • Get a heavier flywheel. Yamaha has one but the cost is about $105.00. An aftermarket flywheel may be an option that would cost less.
Please rate this solution. Thanks!

2003 Yamaha YZ... | Answered on May 07, 2020



Yamaha... | Answered on May 07, 2020


Yamaha... | Answered on May 06, 2020

Outboard motor? It is a V6, so engaging drive should not kill it. I reckon the engine isn't firing on 4 of the cylinders and you are running a twin. The flywheel is small so easy to stall.


Do I have the Dreaded Yamaha Clogged VST filter? - The Hull ...

www.thehulltruth.com > BOATING FORUMS > The Boating Forum
Jan 29, 2009 - 20 posts - ‎12 authors
The Boating Forum - Do I have the Dreaded Yamaha Clogged VST filter? ... hooked up (which is the case for fuel starvation conditions - grr).

Yamaha... | Answered on May 03, 2020

Hi and welcome to FixYa,

If I remember right, an 3EN-81950-00 multi-function relay onboard an FZR would be on the right side, beside or behind the starter relay. Its function is an electro-mechanical processor. It detects if the transmission is in neutral, side stand is down, clutch is in. In turn it enables the CDI to work and the starter relay to trigger the starter motor. Internally it would have 2 relays and a couple of diodes.

Pls post back result(s). Good luck and Thank you for using FixYa.

1995 Yamaha FZR... | Answered on May 03, 2020

Hi, Ozzyxc2008 for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
YZF600R Forums View topic Manual switch for fuel pump
Yamaha YZF600 YZF600R 1994 2007 Service Repair Manual PDF Download Manuals...
OEM parts for Yamaha
Yamaha YZF600RP Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1997 Yamaha YZF... | Answered on Mar 29, 2020

Hi, Brenton and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
18. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://yamaha.manuals.cc/2017/07/yamaha-pw50-pw50h2-2017-service-manual.html $8

2006 Yamaha PW... | Answered on Mar 19, 2020

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