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General CVT Filter discussion- Burgman 650

9K views 60 replies 13 participants last post by  Bluebottle 
My 120 HP snowmobile used to explode like a shotgun, $90 belts way too often. Someone suggested they alleviated a similar issue on the same sled model by removing the plastic belt cover and foam sounds insulation, leaving just the perforated steel explosion cage. As soon as I made that change letting more cooling air on the CVT, my CVT belt life more than doubled. Heat kills.
Now I'm just wondering, why would a snowmobile ever need any sort of filter except fuel and oil with dust presumably completely absent?
 
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