I have a 2002 grizzly 660 w/ the following mods :

k&n filter
HMF header and pipe(loud)
port & polished head
webcam racing cam

Problem is, recently my engine braking has quit working unless the engine is above "normal" idle. I don't think the mods have anything to do with it as the engine braking worked great for many months after I made the changes. If i turn the idle up the engine braking works better but not like it should and these suckers get hot enough as it is.


Any insight would be helpful.

Mike
spradling@adelphia.net

 

I've never had the problem, but I'll help out by bumping this thread back to the top [img]i/expressions/face-icon-small-smile.gif[/img]

 

All this is, is a guess, could it be the cluch or a worn out belt? Let me know what it turns out to be.

 

The belt was my first guess as well. I checked it but everything looked great [img]i/expressions/face-icon-small-sad.gif[/img]


Mike

 

Try checking the engine idle speed with a tach (1450 to 1550 RPM), and you must mic the belt to ensure it is sized to spec--( 1.31 inches new and 1.18 inches minimum). Also you may need to clean and regrease the pri and sec sheaves. Post back

 

Good idea, i primarily checked the belt for wear on the top and botom. I will check the width and let you know.

Mike