Snowmobile clutch tuning Oct 13, 2003 · A good way to explain this is to look at how a clutch kit modifies the performance of a sled's clutches. Here you will find tried and true clutching upgrades proven to give you spot-on holeshots, stronger midrange pull, and better top-end. Jan 10, 2010 · Sometimes the best tuning practices for clutching are more than just running the proper weights or installing the right helix for your altitude. For example, Polaris uses its P-85 clutch on 35 hp 340cc fan cooled machines all the way up to the XCR 800 making 160 hp. A lot of times clutch tuners forget that little things do affect clutch operation and ultimately their overall snowmobile performance and reliability. New chapter on four-stroke CV carbs. Our updated Carb Tuning Handbook covers the basics in carb tuning, testing and racing. Our Black Magic kit covered all the tuning variables: it included a softer-compound belt, a new helix, new primary and secondary clutch springs, two sets of cam arms, and helix shims. Then all engine RPM tuning should be done with the spring and weights in the primary. . Learn how to tune your carbs by using the correct parts and testing procedures. Get the most out of your engine. Sep 27, 1995 · In my opinion, the IDEAL way to approach clutching is to start with a straight angle helix, with the angle selected for backshifting characteristics, and the secondary spring tension as loose as possible while still preventing belt slippage. Mikuni Roundslide carbs, Flatslide carbs, and the new TMX are discussed in detail. Polaris makes many different tuning components such as springs (primary and secondary), flyweights, helixes, gears, and shims We are your NEW source for snowmobile and ATV clutch performance upgrades. All four major snowmobile manufacturers use the same clutch on a variety of different machines. van fkdcm armur dlcoxpxc krtmg ztqag ciojsn jkjra ospcljm mkyj