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Old 11-17-2009, 10:05 PM
carpetrugger carpetrugger is offline
Motorized Bicycle Newbie
Join Date: Apr 2009
Location: Calif.
Posts: 13
Default Re: question about 49 and 80cc

I will do that when I have a reason to pull the head. It's running fine now. I'm not sure but I think I have read somewhere on one of motorizsed bicycle fourms that the 49cc/47cc engines have a smaller size head stud 6mm I think and the bigger engines have a 8mm stud. I haven't checked mine yet, I did check the torque on the cap nuts but cant remember what size socket they took. Anybody know if this is correct about the different size studs?
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