Bermyboy, thanks for reply. I noticed the OEM Kymco head appears to have more cooling fins than head that came with my Malossi kit, so I think OEM Kymco head is a good one, nothing bad about using OEM head IMO. I also like the head gasket design of Airsal kit, same as Kymco, simple is better. Did you bother to set squish?, does kit come with good instructions on how to set squish? How many cylinder base gasket(s) did you use? Thanks for any comments.
What's the difference between straight gas and oil, and mixed fuel? With my Malossi BBK I add oil to the fuel tank and run the oil pump. I have carefully measured and burn approx 3.5 oz oil per gal of gas. Malossi kit appears to be pretty solid, but I have done a lot of tweaking to get it run cooler. I have to say, I am not super happy with it, but I still have a few other things to try, so haven't given up on it yet. Cheers