Engine accidentally flameout

A. If the ignition stop switch wire connected to ground or not;

B. If the starter can be normally pulled out or not; if the oil level is not in normal level; probably the engine inside have already been blocked;

C. If the spark plug and ignition can normally and consecutively ignite or not; if the spark plug gap between 0.6-0.8 mm or not;

D. If the oil system be blocked or not, including: the tank nozzle filter, fuel tap, oil tube, the oil-way betweenthe main jet and the float chamber, the cleanliness of float chamber, the oil-way between float chamber and carburetor throat.