Short Case GY6 QMB139 Scooter Engine 50cc, 80cc or 100cc powerpak 1500 RPM Spring

1500 RPM Spring

Starter motor for GY6 125cc

Falcon or side-by-sides just dont have the punch that they should have for a 170cc vehicle

And remember to refill the gear case with 80w90 gear lube

Short Case GY6 QMB139 Scooter Engine 50cc, 80cc or 100cc powerpak 1500 RPM SpringThis is the 50cc short case scooter engine that fits scooters with short case engines. You have the option of getting this engine in 50cc or 80cc or 100cc with the big bore racing engine. This is the 4 Stroke complete engine, short crankcase. For the 80cc big bore engine we install a 47mm cylinder and piston. For the 100cc big bore engine we install the 50mm big bore cylinder and piston.. The 100cc Option This is the 100cc short case scooter engine