no the compression is same weather the engine is under load or not, same displacment of air is drawn in and compressed on one compression stroke more fuel (thottle) gives a bigger bang and more heat/pressure, if a head gasket is gone it will blow on idle or load, most probably a steel gasket any how and air cooled 2 stokes dont tend to over heat or blow em
as dcm somin is blocked or gummed up by old fuel oil mixture would fit
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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