RE: another darn ryobi post (ryobi performance modification, analysis and comparison)
Still hanging in there on improvments on the 33 RYOBI, and I continue to find differences. I dismantled several engines when I replaced the rod with a POULAN produced rod, see previcous post. I was compairing crankshafts, and noticed that one of the short-shaft crankshafts has a dfference as to where the keyway is. Using a degree wheel, it appears to me that there is a 10 to 15 degree difference. I looked at the long shafts engines (2) that I had handy, and could find no difference. It is possible I suppose that the crank slipped at some time since it is pressed on, or maybe it was an attempt by the manufacture to gain power or RPM. Any thoughts on this. I have always used electronic ignition on my "RYOBI" conversions, but it does seem possible that it would improve high end RPM, but may also be harderto start. Just wondering. FALATHEAD