Guessing not good

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I once restored a 197x Honda CB750 that had been sitting for 10+ years. Engine was locked up. After squirting oil (or maybe it was transmission fluid?) in each of the spark plug holes and letting it sit for a week, I pushed the bike onto the street, pushed it as fast as I could run, hopped on, and slammed it into 2nd gear. The engine broke free, and I had it running within the next few day.

When I changed the oil, I found a significantly-sized broken piece of piston ring in the oil pan. Funny thing is, the bike ran perfectly! I was even able to balance vacuum across the carburetors. Had I not seen the metal ring, I never would have known.

I doubt yours is a piston ring, but it sure looks just like mine did :)
 
Putting my front end back on today and come to find out the steering stem in bent all kinds of funny. That's the only part I didn't have new. New forks, triples, head bearing, front wheel bearings, brake pads. All new. The only existing part left, the steering stem. Ughhhhhhh
 
Thanks again sir. Do let us know what's up with yours. Since I pulled the same **** outa mine recently I really am curious. Mine did appear directly after I did the stator upgrade. I really think it's in the starting system though. That's what I tell myself every time it starts knocking like hell. It can't be serious, surely I can just roll start it!
 
So, they found nothing major. Bike has good compression nothing evident with out breaking the whole motor down. They believe it is from the shift selector and the drum? Not ready for a valve service yet so a riding I shall go.
 
So.............. found the issue
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