Question about 2000 Yamaha WR 400 F
Rode to a mates place turner bike off 20 mins latter went to start but nothing checked plug no spark power to on off switch
There is a black and white wire near the coil the should be for the kill switch or on / off if you unplug that wire you will bypass the on / off switch.
The CDI unit on the Yamaha often does not provide a very bright spark and it's often very hard to see in daylight. First make sure you replace the plug, second make sure you have it grounded well on a part of the engine. Make sure you have something covering the spark plug hole because if gas comes out of the cylinder and the plug does fire you can ignite the bike on fire. (I know that one from experience). I'd be willing to bet you don't have an ignition problem unless the key is shorted out. Sounds like the bike was running fine until you shut it off and then would not refire, did you try to push start it?
First things first, double check the spark, like I said it's VERY hard to see in daylight.
Posted on Dec 12, 2008
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when i shut off my 2002 suzuki motorcyle it run perfect then went to start i and have no power battery good have no light on dash no head light brrake light everything is dead what could be wrong can you help with a idea thank you dave
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