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View Full Version : 2004 YFZ450 timing?


QuinnLT4
11-20-2008, 06:21 PM
I just had to rebuild my 450. I bought a brand new jug, piston, valve head and the whole 9. got it all back together and I dont have any compression. I got my timing marks lined up according to my manual but still nothing. Any ideas?
dtzalba450r
11-20-2008, 06:24 PM
did you put your spark plug back in?
ohsobad_chevy
11-21-2008, 03:22 PM
Make sure you put your cams in correctly on TDC.
QuinnLT4
11-21-2008, 04:38 PM
Checked all that, now I am thinking a valve my be sticking open....
ohsobad_chevy
11-22-2008, 06:37 AM
Originally posted by QuinnLT4
Checked all that, now I am thinking a valve my be sticking open....

That was my next suggestion.......just check everything with a fine tooth comb, it will become apparent. Let us know what you find.