Thanks for the info, I will have to just play with them, the 500 does only have about a inch clear between the stock cover and the pipe as it raps around near the cover, but the e-line on the 250 does only stick out from the case about an inch and a half. I have a sled for the powder days and pretty much wanted the bike for spring cond. when side hilling on the sled in the spring sucks, but I have always been a bike rider and my buddy got me into sleds about three years ago. Its been the hardest thing I've tried to tame so far. I'm 53 and live in north Idaho, couldn't stand to sit winters out, been riding bikes since six years old cant stop. So you say the thing over heats in spring even thou you are on top of the snow and not plowing through it? and on the carb icing has anyone tried a home made plastic shield with insulation zip tied some way closing off the carb on the non pipe side? Do you run the stock air filter with oil or not as with the fixed kit I received from Timbersled it came with an air filter sock, I haven't had a chance to even read instructions nor put the kit on yet, just want to be prepared for it all when i do get that first ride out. THANKS AGAIN FOR THE INFO.