04' YFZ 450 Timing help Please!
 

So my little sisters timing was off due to bad tensioner. I put the cam sprockets back where they should be at TDC. It wont start. I checked the valve clearence and they are to tight. Does that mean it is not starting because the valves are open a little during the compression stroke? if so I just need to replace the shims. thanks for any advice from those who have been there lol PS yes its getting fuel and spark. and I know how the cam sprockets go. thanks!

04' YFZ 450 Timing help Please!
 

Did you have the flywheel marks lined up at the same time that you had the cam marks lined up?

04' YFZ 450 Timing help Please!
 

Ya, TDC was lined up at the time the cam sprocket marks were lined up.

04' YFZ 450 Timing help Please!
 

So incase anyone runs into this problem, it was the valve clearence. A little shimmin and she fired up and purrrrrd, mmmmm.

04' YFZ 450 Timing help Please!
 

Did the valves have to much shim or not enough? Im having the same issue...