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Has anyone had any exp with Arctic Cat Clutch Performance Upgrade Kit 0637-272? I have a 2004 ZR900 EFI Sno Pro that is sock except for a Speedwerx Y pipe. This kit consists of 83g weights and new helix, no springs. Not sure if I should change springs or use stock. Any help is appreciated.
 

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That Has the ACT drive in it right?

Clutching is one of the hardest things to get right, There are so many variables to consider. Altitude, weight of the rider, etc.

I have never bought a clutch kit out of the box. I always went to a professional, If they r good they will have a whole selection of springs that they will try and let you test ride it to see if its better. It is a huge game of trial and error to get a good clutch.
 
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