Rockjaw
Member
Hey all
Ive got a friend that has an 80cc bike.(brand new motor that he had running for a week. .he couldnt get it to start. I checked everything..put new carb, and it was getting spark..sucker wouldnt start for nobody..then i asked him if he ran the motor without the exhuast pipe on...he said yes ..that he drove it down the street with no pipe..I said no wonder.
what really happens to these motors when you run them with no backpressure? I am going to say the motor needs new rings now. That correct? it lost compression?
Any advice helps. Think the piston and cylinder need to be changed as well? or just rings.
Thanks!
RJ
Ive got a friend that has an 80cc bike.(brand new motor that he had running for a week. .he couldnt get it to start. I checked everything..put new carb, and it was getting spark..sucker wouldnt start for nobody..then i asked him if he ran the motor without the exhuast pipe on...he said yes ..that he drove it down the street with no pipe..I said no wonder.
what really happens to these motors when you run them with no backpressure? I am going to say the motor needs new rings now. That correct? it lost compression?
Any advice helps. Think the piston and cylinder need to be changed as well? or just rings.
Thanks!
RJ