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Search: Posts Made By: mtc900
Forum: 125cc - 249cc 04-20-2020, 08:58 AM
Replies: 6
Views: 10,864
Posted By mtc900
Thanks everyone for the suggestions. I got the...

Thanks everyone for the suggestions. I got the new rings in after lightly sanding the cylinder with some scotchbrite - I don't have a hone. The scooter is running and after the initial burning off of...
Forum: 125cc - 249cc 04-14-2020, 03:59 PM
Replies: 6
Views: 10,864
Posted By mtc900
I did not sand the cylinder wall. Anything...

I did not sand the cylinder wall. Anything special I need to do in that process? Or other pointers for reassembly?

Thanks for the suggestion. I should be putting this back together this weekend.
Forum: 125cc - 249cc 04-13-2020, 11:42 AM
Replies: 6
Views: 10,864
Posted By mtc900
I finally pulled the piston out to check the...

I finally pulled the piston out to check the rings. The lower rings are not wider than the piston anymore. I'm guessing that is allowing oil to be pushed around the piston.

I ordered new rings and...
Forum: 125cc - 249cc 03-26-2020, 03:36 PM
Replies: 6
Views: 10,864
Posted By mtc900
Oil in the cylinder

I disassembled the cylinder of my 150cc GY6 last year to replace a number of leaking gaskets. The engine ran well but leaked too much. During teardown I noticed the piston was scorched on top so I...
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