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Discussion Starter · #1 ·
Ok I will try to make this short. I have a 720 in a 2002 sno-pro. I froze the motor because of a bad crank bearing so I had the crank bearings replaced, clutch side piston, ring etc. So I get it back yesterday and go for a small ride to break the motor in. Got about 15 miles on it and it started running like crap. I thought I fouled a plug so I stopped pulled both plugs. Clutch side plug was pretty white, mag side was good and oiled. I replaced the plugs tried to start the motor and the thing is popping like crazy. So I checked everything I possibly could and have come to this but I dont know what to do next. If I pull the clutch side plug wire while the sled is running the popping stops and runs the same. I have checked and the compression is there, but there is obviously something not right??? I have tried 2 different plugs and no difference. The weird thing is that it didnt do this untill i pulled the plugs and put new ones in??? I just dont know what to do. Any help would be appreciated.
Thanks
 
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