i have a 96 600xlt sp. i have new crank bearings in it. 3 new .20 oversized pistons in it. when i had it apart cleaned carbs up. it has a dg can on it also. the main jets are 280. i have turned in the idle screw in 2 turns all the way up to 4 turns and cant get it to start. had it started a couple of times but would not keep running then would not start again. air screw is at 1 turn out. and had it out to 1 1/2 turns out. i am at a loss. biggest snow coming in 10 yrs and sled wont run. about ready to take sledge to it. any help would be great.
