E: Engine compression ratios

[Bill Thomas]

It's got nothing to do with Cats, Unless you have very light flywheels, It them that should do the job,
We found with a Comet we built a few years ago we did what Robert and I do, But that Bike needed the flywheels moved on a nats more, Before kicking, Very strange. Cheers Bill.

 

[Cyborg]

Another one at. https://www.uempistons.com/index.ph...e=comp&zenid=0a1466268dad347ba12a54d442d13865