Ray thanks, that's exactly the kind of information I was fishing for. Motor designs, especially in relatively inexpensive engines, aren't perfected works. I've found that most of the small engines like to moan about their health problems and hope we will listen and do something to help solve their issues. When I'm not feeling well I check my temperature and if it's elevated I do something about it. Diagnostic work isn't voodoo, but cutting the heat output in half is quite impressive & simple...once it's explained!
I don't have a Whizzer at this point, but if I acquire one I intend to address the high heat issues as instructed Ray. Through the years I've decided that heat and imbalance are fatal flaws in most air cooled small engines of any type. Poor heat dissipation qualities, inadequate lubrication, limited external air flow, timing issues and the list goes on....most builders go straight for more power and this exponentially compounds the effects of the original motor' design inadequacies. The CG 2 cycle motors are an obvious example, not the best foundation to build on, but when it's inherent weaknesses are dealt with first (heat and imbalance etc,) quite a bit of power can then be extracted from them and they hold together quite well in daily riding.
Great photos really help as well, thanks.
Rick C.