Gas scooter 139QMB 49cc engine Cylinder, Piston, Timing & Crank diagram with parts listed for purchase.. The document provides diagrams and part lists for the various components of 49cc scooter engines, including the cylinder, cylinder head, right side crank case, and left crank case. Over 100 individual parts are depicted and listed, with part numbers, descriptions, and quantities for each component of the engine.
Complete engine diagram for the 139QMB 49cc Scooter Engine. Head Cover, Head & Valves Assembly, Cylinder, Piston, Timing & Crank Assembly, CVT Belt Cover & Assembly, Variator Pulley Assembly, Clutch & Rear Pulley Assembly, Starting Motor & Starter Gear Assembly, Stator & Cooling Fan Assembly, Crankcase Cover - Right, Oil Pump Assembly, Crankcase - Right, Gearcase Assembly - Left, Crankcase.. With our GY6, 139QMB, 49cc Engine Parts Diagrams, you can confidently tackle maintenance or repair projects with precision and confidence. Equip yourself with the knowledge and resources needed to keep your engine in top condition. Browse our collection of engine diagrams today and take the first step towards optimizing your vehicle's performance.