EPI guarantees the accuracy of each weight to ensure that the clutch is accurately balanced... so I severely doubt it ... but on the other hand, ANY clutch kit can reduce engine life because a higher clutch engagement has more initial shock and and stress on the PTO end of the crankshaft which can prematurely wear out bearings... also there may be a higher operating rpm which has more engine stress and could cause early failure. So you see there are many variables to consider... and to make a claim like EPI kits cause your engine to fail is totally unfounded.
so in any case how many "more" rpms am i going to be turning with this pro kit. remember i didn't buy this kit for doing wheelies and getting to my max speed faster, i just wanted better trail performance.
You should not go up any RPMs with any clutch kit by it's self. No need as your stock motor will only make HP at a certain RPM, no more. A good clutch kit will load the motor resulting in better performance. This will shorten the life of the motor but so will starting it??! Clutching when done correctly is the least of your worries!
if i remember correctly the EPI pro kit i just installed mentioned something about bringing up peek performace rpm. ill look when i go home tomorrow. im sure it said 8500rpm, and if i want to raise it more i place shims in behind the wrist clip of the secondary. this inturn would push the helix in further.
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