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View Full Version : How the heck does this happen... 400ex



jtracer
12-04-2008, 04:37 PM
2000 400ex, bought for cheap with a bogging prob at 1/2 throttle, wasnt any of the obvious, carb, filter, plug.....
The damn cam had rotated 180 degress off center and the timing chain was off by 3 or 4 teeth. The engine was never opened up.. any ideas on what caused this? or if theres anything to be worried about, she runs perfect now..

dariusld
12-04-2008, 04:49 PM
Bad cam chain adjuster?

katch26
12-04-2008, 04:58 PM
Originally posted by dariusld
Bad cam chain adjuster?
stretched timing chain or a combination of both