I'm new to the snowmobile thing. My uncle gave me a 1980 everest 500 that didnt run. After I replaced the fuel line in the tank, and it could finally get some fuel to the carb it took off. But now the clutch will not engaging all the way. I was told the spring may be broke. The sled sat for about 2 years before he gave it to me. But it ran strong and fast just a couple day ago. Now when its floored it only does about 20 mph. Do you have to have a cluth puller? Or can I get away with using something else. I would appreciate any kind of help or comments. Thanks.