I am looking for some input on a project. I recently pulled a bike from storage after 7+ years. It was shelved due to a bad second gear. I loaded a battery into it pulled the choke and it fired and ran for about 60 seconds before I shut it down. Before tearing it down I wanted to explore the overall condition of the engine so I can do any “while you are in there” type repairs. The results are...



Test was done engine cold with a battery charger hooked up and throttle open. “Wet” test is with a squirt of sea foam fogging oil in each cylinder.

Book spec is 210psi (at xx? above sea level) and 10% leakage.

My question is, do I replace rings? While it didn’t make the compression numbers dry it did come into spec with the oil added. But then, doesn’t meet the leak down requirements. Leakage is on order most-least so majority of the air is escaping past the rings. How much of this do you think can be attributed to being shelved for so long? Bike ran great before I put it up (hence the blown up second gear). What are your thoughts?

Thanks.