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Kfx400 wont start, need help badly
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Posted by: MaTT400KfX

We were going on a 2 day trip tomorrow morning but my **** quad doesnt want to start at all. My bike is stock. we took the carb a part to clean it, nothing special or maybe a little tiny stuff in the pilot but not sure. we put the carb back we check the spark plug, fire is good, plug is a bit black but ok. We tried to start the bike and doesnt want to start. We Got fire, fuel, no air leak, all hose on carb are ok .... what's wrong?

Last time i tried to start it, the bike was in 1st gear, i pulled the clutch lever completly and when i hit the start button, the bike tried to move foward??? What's the problem, my clutch already gone?
Because i never really notice that my clutch was slipping or anything before today. And i run semi-syntec Motul 5100 15-50 oil, change oil and filter every 300 miles or so.
My bike as like 1200 miles on it since i bought it in april 05. and i bought it brand new, 04 kfx 400. Can it be a bad clutch adjustment? I'm tryinh to find out in the service manual, but your help would be REALLY REALLY Appreciate. If its only adjustment, maybe i ccould save my trip ! Please let me know as soon as possible guys ! I'm certain that one of you could help me out !

Posted by: JOEX

Try a new plug anyway. Have you cleaned the air filter recently?

Posted by: SnowFlake

SAme thing happend to my 400ex, there was a wire seomwhere that got ripped apart and it wouold trunover and everything but it would not start. so i put the wire back together and it was all good.

Posted by: MaTT400KfX

no, seems like one of my intake valve is too tight. not sure if this could be my problem, but i'll adjust it tomorrow when i'll have the new shim and see if it was my problem.

thanks guys !