Re: piece of cylinder wall broke off BGF china girl.
This site may be of help to you:
https://www.1977mopeds.com/
This site may be of help to you:
https://www.1977mopeds.com/
piece of cylinder wall broke off BGF china girl motor.
- Thread starter tylerlough
- Start date
Re: piece of cylinder wall broke off BGF china girl.
Right now the plan is to get a Alukit 70cc cylinder, high comp head, piston, Mikuni 20mm carb and a high performance exhaust. Should cost about $300.
Then I can use the stock 49cc cylinder, head, piston and carb on the motorbike. I have a pocket bike expansion chamber I'm going to adapt to the motorbike. That would give me a displacement of about 45cc because of the shorter 40mm stroke. This is dependent on the bottom end still being good, if it's bad I'll buy a new engine.
Right now the plan is to get a Alukit 70cc cylinder, high comp head, piston, Mikuni 20mm carb and a high performance exhaust. Should cost about $300.
Then I can use the stock 49cc cylinder, head, piston and carb on the motorbike. I have a pocket bike expansion chamber I'm going to adapt to the motorbike. That would give me a displacement of about 45cc because of the shorter 40mm stroke. This is dependent on the bottom end still being good, if it's bad I'll buy a new engine.
Re: piece of cylinder wall broke off BGF china girl.
I still haven't done anything with the motorbike in like a year. I'm looking to get it going again so I can ride it and a friend can my Tomos moped. I went looking for a 66cc cylinder and the only thing I can find is a topend from gasbike.net.
Do these needle bearing top ends have the same wrist pin diameter as the bushing motor that I have?
I still haven't done anything with the motorbike in like a year. I'm looking to get it going again so I can ride it and a friend can my Tomos moped. I went looking for a 66cc cylinder and the only thing I can find is a topend from gasbike.net.
Do these needle bearing top ends have the same wrist pin diameter as the bushing motor that I have?
Re: piece of cylinder wall broke off BGF china girl.
Sooo many ways for these to fail
3rd picture says it all, the circlip came out of the groove in the piston that keeps the wrist pin in place.
Sooo many ways for these to fail