... start or electric startDiesel engine featureUnique transmission system SEEMARK small diesel engine adopt sophisticated gear transmission mechanism ... of the cylinder block, engine cover, and valve train all combine to reduce engine noise levels.Diesel engine specification ModelSD170F ... SD186F(E)SD186FA(E)TypeSingle-cylinder, Vertical, 4-stroke, air-cooled diesel engine,direct injectionBore*Stroke (mm) ...