I have a 2002 Raptor 660. It will not crank all the way over. It acts like its compression locked. If you take the plug out it will crank over. Could it be the starter??

 

well if it isn`t the starter then i would look into a bad compression release guide being faulty.

 

Do you think it could be the starter??

 

the starter would be the first place i would trouble shoot but it sounds like your compression release is bad.

the compression release is located at the left end of the camshaft.the release slightly opens the left exhaust valve during engine cranking.the reduction in compression makes starting easier.this is how to inspect it.

1.clean the sprokets and release mechanism
2.pivot each lever outward and check for smooth operation.when the lever is pivoted and released,the spring should fully retract the lever.replace if the spring if it is fatigued.
3.inspect the springs and pivots for buildup,binding or other damage.
4.check the fit of the guide plates on the release assembly.the levers should not drag on the guide plates.
5.inspect the shoulders on the bolts.when installed,the bolts should fit in the sproket with minimal play.
6.inspect the sproket teeth for wear or other damage.when mounted in the chain,maximum movement of the chain is 1/4 of a tooth.if the sproket is worn,replace the cam sprocket and cam chain as a set.if this needs replaced you might want to get a new crankshaft sprocket and check the chain guides for it too.
7.inspect the lifter,drum and pins on the camshaft.the lifter should smoothly raise and lower as the drum is rotated.

hope this helps....if your not mechanically inclined i would not mess with it and just take it to someone who can do this.

 

Thanks so much!! I will check that out.

 

no prob man!...lets us know how you come along.

 

wow pabst nice writin i might have to save that just incase

 

yeah it amazing how intelligent someone can seem when they have a clymer manual in front of them!HAHAHAHA!!..they even have neat little pics too!!!

 

I have to give a thanks also.

I need to check my Decompression Release, but I'm too "iffy" about just diving into it....

..the step-by-step will definitely help!!!!![img]i/expressions/face-icon-small-smile.gif[/img] [img]i/expressions/face-icon-small-smile.gif[/img]