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I have the Ulmer clutch set up in mine where he machined them as well. Stillnot getting out of the low 90's. Would you recommend shimming mine primary as well?

I purchased my trail kit and machining from Ulmer. As always, Allen under promised and OVER DELIVERED! Can't wait to ride it!

Yes it is easily done. I did mine a week or so ago.

Thanks X2 tonight weasel33!!! :sled2::-o

Thanks weasel33. That is what I thought you were referring to. Appreciate the clarification. Shane

First, THANK YOU to studroes for all of your valuable advice and input. I use my Viper for Canada riding only. I have another sled for riding here in the states. I put 3,000 miles on my sled last year. This year I had shocks rebuilt and had some mild revalving done (by Monster Performance...

What do you guys mean by "active"?

Thank you sir!!!

Sent both the primary and secondary to Allen on a Friday, they were shipped back out the following Monday with incredible explanation and service as always from Ulmer Racing! I for one CANNOT WAIT to try out the new setup!!

What are the torque specs for the primary and secondary clutches? Thanks! Shane

What torsion spring (Yamaha Part # please) did you install? Thanks

I just spoke to Allen and I am sending him my clutches this week. I have used his stuff in the past with great results and I hope this time will yield the same results. I love the sled but it was a DOG on the big end. I REALLY hope this is the difference.

Yes, I do run synthetic oils and grease. Amsoil here. Thanks for the feedback.

Drained the chaincase....no water, perhaps the oil was just THAT burnt?

I changed my chaincase oil at 300 when I did engine oil. Have about 1,100 on it now and chaincase oil is milky. No visible leaking anywhere. Has anyone else experienced this? Thoughts? Thanks

Found one at a dealer in Maine. Sent out today!!!

Does anyone know if any after market companies make a tall windshield for teh Viper since OEM's on back order?

pierre, The semi aggressives dont push in the corners? I have semi's on two of my ski-doos and love them, just want to be sure I get the right set for this sled. Thanks

When u say cycle the pump...key on till pump stops, key off, key on till pump stops, key off, key on till pump stops THEN CRANK IT OVER?

If you are looking at aftermarket skis CURVE is the ONLY way to go. I am thinking CURVE and snow trackers paired together