50cc 4-stroke QMB139 complete engine assembly. Short crankcase version.

Engine is set up for PAIR Emissions System. PAIR is an acronym for Pulsed Secondary Air Injection System. It is an emissions control system used to lower HC and CO emissions. It works by allowing air into the exhaust flow.

Engine Specifications:

• Premium Quality, Hand Inspected, QC Verified
• Output Shaft Length: 54mm
• CVT Cover (short case): 16 inches
• Set up for drum brake
• Set Up for PAIR Emissions System
• 69mm Valves
• 8 Pole A/C Stator
• Includes Premium Bando Drive Belt & NGK Spark Plug
• Engine Oil: 0.8 Liters
• Gear Oil: 0.12 Liters (filling) and 0.10 Liters (changing)
• For Drum Brakes

Shipped Dry, Included Oil Not Installed
Do NOT Run Engine Without Adding Specified Amounts of Oil ( Includes 1 Liter of Bel-Ray Gear Saver Hypoid Oil 1 Liter of Bel-Ray Engine Oil. DO NOT RUN ENGINE WITHOUT ADDING SPECIFIED AMOUNTS OF OIL.)
Check oil level after letting the engine idle for a few minutes, add additional oil if needed

This Engine Only Ships to the Continental U.S

No-return policy on all engines, barring manufacture defect or shipping damage.