[ryanhermann]

I have a 1978 Arctic Cat Pantera 5000 with the fan cooled engine. It has a Comet 94c duster clutch on it. I have to rev the sled up a little ways to get the clutch to engage. It eats belts if I nail it to much at lower speeds. And when I run it at WOT it doesnt seem to go that fast my brother with a 1985 Pantera 440 said he was only going about 1/2 throttle and going about the same speed as me. I see they sell spacers for belt width. I was wondering if being too wide would cause these problems. But I have also heard the duster is to big for a 500.

 

[RJ Gleason]

The duster is capable for that engine, but a 102c would be much better.
It might not be tuned properly for that engine or have a weak or broken spring or wrong weights/pucks.

Check clutch alignment, if not enough offset, it will eat belts as it will pull the belt crooked.

 

[ryanhermann]

Ok thanks but now sled must have blown a seal idles only and when I give it gas it backfires and smokes. The engine wouldn't rev up above idle.

 

[kccats]

Do a compression test @WOT!

 

[ryanhermann]

Ok when I get a chance I will on both sleds