No, here is the skinny on overheating...
Heat out has to exceed heat in.
Heat in is of course from
1) the volume of the fuel burnt, and
2) the temperature the fuel burns at
3) the amount of time that burnt fuel heat stays near the engine metal
4) density and pressure of the burning fuel are smaller factors
Heat out is from:
1) Vapourization (phase change, evaporization) of fuel particles
2) air over fins heat exchange rate (whether blocked or slowed down)
3) Burnt or burning fuel heat expelled out exhaust
There you go, at least 7 ways to keep your engine cooled.
More power = more heat, for the above reasons.
The incoming charge of air/fuel tends to keeps the sensitive bits (crank, piston, rod) protected.
Increased vehicle speed helps with air flow.
Mixture richness helps too.
Lean it out and you will blow it up in seconds.
A very highly tuned engine can be damaged by running out of fuel at full throttle.
A stock Blaster, not so likely.
Idleing will cause it to overheat from lack of airflow. Running hard at full throttle in sand is prone to causing overheating. Typically you have to jet rich for it and keep moving. Advanced timing causes overheating, lean mixtures of course, and cold weather ironically for the effect it has on mixture. Loose piston clearances cause the piston to overheat, lack of oil causes friction heat, high compression increases heat transfer to the metal of the engine.
Steve
