HCS Snowmobile Forums - View Single Post - Stm secondary clutch
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Old 04-06-2019, 08:38 AM   #8 (permalink)
Join Date: Dec 2008
Posts: 15

My conversation was with STM and there clutches on the new 998 turbos. They told me they were not built to run over 8500 rpm. I bought the 4 tower pro4 Incase I want to go to a higher HP tune some day. I believe my weights are 80 grams ( not 100% sure on that )
Yes my center bushing on my STM secondary went out.
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