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View Full Version : Honda 400 Ex Trouble, Any Help???



DeadBolt2008
06-21-2009, 04:36 AM
hello i recently purchased a 2001 honda 400ex
the day after i got it i was riding it hard for about 30 minutes.

in 5th gear topping out i heard a decently loud "POP" noise from the engine bay area.

I replaced the spark plug and ended up taking off the head trying to search for the problem.

The engine has no problem turning over, the Carb looked good and had no problem with gas flow it seemed.

All sounds normal it just seems as if maybe a line is clogged???

When i looked into the Engine head one of the pistons had standing oil around it where the others didnt. maybe that will help???

Here are some pics.
http://img14.imageshack.us/gal.php?g=img00016n.jpghttp://img14.imageshack.us/gal.php?g=img00016n.jpg
HELP!!! =D