Those Ski-Doo primary clutches range from 10 grams to 30 grams of unbalance in the front plane. This can generate alot of vibration. I'm Joe Perkins from Perks Spin Balance I've been balancing clutches for about 15 years we charge 50.00 per clutch add return shipping and we will get it back within 3 days. Call today 435-720-3162 Tremonton, Utah