Re: 2-stroke 'over heating' myth...
I concur with Bob.. he has a really good point too on air fuel mixture! Very important to properly identify. Of course the old fashioned spark plug chop makes for good identification as with any motor.
I wanted to add if a fellow messes with the timing look out. Bad idea!! I played with the timing on the Morini in the coldest dead of winter for a brief spell... only to put it right back where it was. . This would sorely torch-er any motor in the summer and burn one up just as well as a lean condition.
Still gotta have a since of humor.