Hey a friend of mine just purchased this sled. It has about 14000km on it but only about 3000km since a complete rebuild. The sled has a comet primary clutch as well. It seems to run nice but when you get on it, it gets outa the hole very fast then the rpms drop back from 8000 to anywhere between 6500 and 7500 and the sled falls flat at about 65mph. It varies on every pass across the field! Sled idles nice and seems to be making good power. To me it seems to be losing it all in the clutches. I am looking for a second opinion. One guy told him he thinks its been geared down as well and thats part of the reason it tops out at about 65mph. Seems to be suckin the fuel in at an alarming rate too.