Yeah dumb question but I have been having a problem with my 2001 Ski Doo MXZ 600. I let it warm for 20 min before each ride. Starts out rough, no power at all. After a bit of riding it runs fine. Quick as hell. Its been clutched and Jetted. Last time I ran it was about 2 weeks ago, ran awesome. I started it today let it warm for 20 then tried driving it. Barely enough power to move it. THen when I got going it only did like 25 tops. My cousin repairs sleds for a living he just went through it n cleaned carbs, hes out in montana so i cant contact him for questions. I am runnig amsoil instead of doo oil. damn does this thing takes mixed gas or what?????