I am thinking of getting this pulley now and going back to the 39t sprocket.
I tried the shim on the 183cc motor and the motorio dr2 that we just bought last trip.
This one came with both pulleys and runs the regular size rollers/sliders.
The kid n me dr2 didnt come with the fan pulley so I used a stock fan pulley that dosnt have the 1mm raised inner lip. It does have the larger 20mm rollers that work better and havent flat spotted yet in almost 2 years. The .80mm shim worked good on this set up on the red dune buggy. It increased take off and dosnt try to take off at idle like before.
The shim is putting the trans in a lower gear and either the belt or the clutch is slipping.
The shim put the belt deeper in the rear pulley and causes the belt to slip on hard take off, or clutch. The clutch is a stock howhitt with longer shoes that is more than 50% worn out.
Going to take it out tonight after work. I might try the clutch off the red buggy that is newer and way thicker to determin what is slipping.
Last edited by Johnny 5; 02-25-2013 at 02:54 PM.
Reason: Added more info
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