Hey, I purchased a clutch kit from Ulmer Racing and it is definately not what I was hoping for - it runs like an absolute dog. I have been playing around with it for several months and it still does not want to coorporate. It worked well on hard pack but never in the powder - just smoked the belt at start up and in the mid. Attempt 1 - Added weight to the heal and mid - both large weights on the heel, 6 washer on the mid, and 3 on tip. Works well on the hard pack but revs high in powder. Like 6300 at 15 mph in powder. Also slows down a lot from hard pack to powder and revs jump up a lot. Full throttle is good at 8500rpm. Attempt 2 - Changing out Helix from stock to Ulmers - I rotate it about 45 degrees clockwise and have it in the one six position. Same result. Attempt 3 - Went through both clutches and didn't see any problem. All ramps were touching the buttons and it did not bind when I shifted the secondary manually. Also, the primary weights swung without issue and the floating sheave and cover both moved freely. Is the issue with the primary spring being too strong? The spring is orange pink orange. In the powder I am slipping the belt in mid range and only hit 7800rpm for top end. Attempt 4 - Added more weight to the mid (8 washers in total) and droped a washer at tip. (trying to improve mid belt slippage and getting upper rpm up) - did not have time to drive it before I went to site. Since I am adding so much weights, I think the orange-pink-orange spring is too large. Should I try to go back to the strock silver-blue-silver spring and do all my weights again? This is getting frustrating. Below is a link to the spring colors: http://www.totallyamaha.com/snowmobiles ... onents.htm Thanks for the help!