There should be a copper/brass bushing over the shaft on the clutch-under the belt that is bolted to the crankshaft of the engine- Never heard one grind though if bad. Really the only thing that could grind would be a bearing going out on the jackshaft or a pulley rubbing something. I think the reason you hear it at throttle down is because the engine noise level is decreasing- where as at throttle up the engine is louder. You really need to elevate the rearend and watch the CVT system working and listen to pin point the noise.
The pics in your album don't help!! need some of the engine/CVT
Last edited by metalstudman1; 07-28-2011 at 12:49 AM.
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