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2002 yamaha wr250, no spark - Yamaha Motorcycles

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Hi,check fuse,check sparkplug,check the coil lead and coil,then check stater has a spark.
good luck hope you get it sorted out.

Posted on Apr 19, 2015

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Posted on Jan 02, 2017

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2002 Yamaha WR250 will not start


Hi, James 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 enrichner.
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. 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.
14. 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.
15. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
16. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections loose, or connected to the wrong cylinders.
17. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
18. Faulty neutral, clutch lever, or kickstand safety switch.
19. Faulty fuel pump or fuse or relay.
20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
cant get my WR250 to start
What to Do Check When Dirt Bike Won Start
YAMAHA WR250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-wr-owners-manuals

Jun 01, 2017 | 2003 Yamaha WR 250 F

1 Answer

How much oil do I put in a wr426


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
http://www.thumpertalk.com/topic/121639-help-wr426-oil-change
How to Change your oil LIKE BOSS Yamaha WR426 WR450 wr250
YAMAHA WR426F Owner Service Manual
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YAMAHA WR450F Owner Manual

Feb 10, 2013 | 2002 Yamaha WR 426 F

1 Answer

How much oil do I put in a wr426


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
YAMAHA WR450F Owner Manual
OEM parts for Yamaha
YAMAHA WR426F Owner Service Manual
How to Change your oil LIKE BOSS Yamaha WR426 WR450 wr250
http://www.thumpertalk.com/topic/121639-help-wr426-oil-change

Feb 10, 2013 | 2002 Yamaha WR 426 F

1 Answer

What is the spark plug gap 2005 wr250


Hi, Ken for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
YAMAHA WR250R Owner Manual Checking The Spark Plug
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Jul 14, 2012 | 2005 Yamaha WR 250 F

1 Answer

Whats the Spark plug gapping on 2001 Yamaha WR250 F?


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
what is the proper spark plug gap for 2007 yamaha yz250f
Yamaha WR250F 2001 2002 Technical specifications
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YAMAHA WR250R Owner Manual

May 16, 2012 | 2003 Yamaha WR 250 F

1 Answer

Yamaha wr 426 f 2002 5th gear ratio


Hi, Anonymous the answer to this question is way above my pay grade and 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 blue links below. Good luck and have a wonderful day.
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Apr 11, 2012 | 2001 Yamaha WR 426 F

1 Answer

2002 Yamaha WR250 Keeps fouling the spark plug. What are the possibilities and things to check? Thank you!


Hi, Lynnmcneely and the usual suspects are:
1. Fuel mixture too rich or enrichner left out too long.
2. Faulty spark plug.
3. Incorrect spark plug for the engine type or service.
4. Piston rings badly worn or broken.
5. Valve guides are badly worn and/or seals worn, crushed or have come off the valve guide and are pumping oil through it.
6. Spark plug cable weak or leaking check for spark jump in the dark.
7. Faulty ignition coil.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Why Does My Dirt Bike Keep Fouling Spark Plugs
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YAMAHA WR250F Owner Service Manual
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Sep 29, 2010 | 2003 Yamaha WR 250 F

1 Answer

2002 Yamaha WR 426 engine F oil capacity


Hi, Kylie_hender for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
engine oil capacity for 99 WR400 My manual is somwhere
How to Change your oil LIKE BOSS Yamaha WR426 WR450 wr250
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Apr 02, 2010 | 2002 Yamaha WR 426 F

1 Answer

Did yamaha make a wr 400 in 2004?


I think you will find that the WR426 was last made in 2002. From that point forward it was WR250 and WR450 in the manufacturing line.

Oct 28, 2009 | Yamaha WR 426 F Motorcycles

2 Answers

Were does the spark plug go on a yamha wr250


remove the fuel tak, the plug is under the rubber cap right on the top of the engine. it is quite deep down, you will need an extension on the plug spanner

Feb 11, 2009 | 2005 Yamaha WR 250 F

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