Hey guys, a buddy brought his 06 450er to my shop because he thought the crank siezed. come to find out it was the reduction gear off the starter. One of the gears had seized on its shaft. Searched an never found that that had happened before. anyways after some more inspection, one of the valve shims was missing. which beat the retainer to ****. to get the new retainer in the head had to come off. then we found a broken top ring. a few days later, everything is back together. new rings, new retainer, new reduction gear, new plug.
press start button, nothing. just rolls over an over.. a little looking, find no spark. the wire from the harness to the coil was broken. thats fixed now we got spark, but she wont start.
do some more research on the org. check the valve lash again. exhaust is good, intake one side is good, one is around .003. kinda tight but should still start. And of all the shims I have. I dont have the right size to get that one in spec.
still no go. check the decomp pressure. its at 35psi. I bump it up to the 65 like it says on here. the thing will barely turn over now.
more frustrations.... after some more tinkering I grab my buddies 08 450er and swap plugs still nothing. check his decomp pressure. 35psi on my gauge. so i set the 06's back to the 35 . still nothing.
I gave up for the night. one thing i did notice tho. the 06 turns over considerably slower then the 08. Is there something I could have missed on the 06 when we put it back together to cause the slow turning over. ?? which im gunna assume is making it not start. turning so slow. not making enough spark to ignite.
my heads goin crazy tryin to figure this bike. please help!