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Discussion Starter #1
I was wondering if anyone knows a good clutch set-up for a '97 formula III 600 with dynaport exhaust and a 144 studded track with a comet primary clutch?
 

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i would`nt be worry about the studds to much .
your major problem is finding the perfect balance on your top end R.P.M. that is even more sensitive becouse of the pipe.that type of pipe pulls hard on middle high range with the conseguence of less backpressure on low rpm and therefore less torque on take off.
first off all pull your sled right to the limit on a nice strait piece and check your max rpm. it shoud be arround 8000-8500.there are different ways to adjust the rpm:
-the first is working on the weights of the primery. expensive and time killing.
-second on the secondary,if you still muont the stock driven clutch.in this case if you are over 8500 you need a stronger spring or you can try to give it more tension(precharge) using the different slots inside the the secondery clutch.if it stays under 8000 go the other way.usually the precharge shoud be 16.5 lb but you could try on first with 17.5 lb.
by the way make sure the carbs are right tuned with the pipe or alse you risk to run to leen on high rpm.
 

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journeyman sled/motorhead
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tune rpm with the primary not the secondary.
 
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