Ok, my friends ski-doo everst 440 has been not ran well and we have checked everything on it (fuel delivery, carb, spark plugs) at first I was suspecting some bad reeds but when I took of the carb and manafold I found it was a reedless so that made that simple. We have gone over everything except the coils. The snowmobile used to just shut off then you would just restart it and go again for 4-8min. but now it just looses all power and won't rev and you need to let it sit before it can run agin for lile 1-3 mins. We have some coils coming but I don't know how to get them off the snowmobile. do you pop them out of that hard rubber thing with some force or do you just rip the whole thing off (I doubt it) or what? Also if we get the new coils and it still sux then is it probably the cranck seals? If so where can you get more? Thanks.

This isn't too stupid of a question is it?