The BT-50SB is a 2.84 cubic inch [46.5cc] engine manufactured by FUJI-IMVAC INC. It has a horsepower of 5.2 hp @ 9,000 rpm and features CDI ignition style with automatic timing module. The engine operates in the RPM range of 1,200 – 9,000 rpm and uses gas/2-cycle engine oil fuel. It weighs 4.8 lb [2.2kg] with the muffler. The document also provides safety tips and warnings including the use of balanced spinner and prop, securely tightening the spinner and prop, not using a prop that has hit the ground, and keeping foreign objects away from the propeller.