RE: another darn ryobi post (ryobi performance modification, analysis and comparison)
combat....
You are doing some very meticulous experimentation on the Ryobi engine and being a Ryobi flyer I'm very interested in what you find out about them.
One of the questions I have is what effect the "side decompression slots" in the cylender walls actually have on performance. I was recently given a Ryobi trimmer that has a single ring, old style transfer ports and a long shaft, exactly my preference for the Ryobi motor EXCEPT it's got those little slots in the cylender walls, which CAN'T be good for performance..... but I wonder what the real measured effect is. It may not be as bad on one would think.... or maybe it is! Have you or anyone else ever done a performance comparison to measure the effect?
diceco