I've rebuilt plenty of 4-strokes, and old Chevy small blocks with some pretty deep grooves. Most got honed, new rings and sent. The ones I know of are still running. I don't know much about what's normal, or considered abnormal for an aluminum head 2-stroke bike engine with 250 miles on it. The rings, looked ok, and the lands we're clean.
I put it all back together, and it rode ok other than a vibration/rumble at low/mid power that seems to go away with rpms. Only shows up at that certain rpm area. That's new. I'm guessing the wrist pin bore, but I'm no expert.
This is what I could get for pics with this phone.
I put it all back together, and it rode ok other than a vibration/rumble at low/mid power that seems to go away with rpms. Only shows up at that certain rpm area. That's new. I'm guessing the wrist pin bore, but I'm no expert.
This is what I could get for pics with this phone.
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