Spec Sheet
The information below is specific to the Chinese Motorcycle - Engine 139QMB GY6 (50cc 4T Scooter) 05-11, showing anything for service information to the amount of fork oil or even the tyre pressures. If you would like to contribute any missing information, please use the edit link below.
Back.Bike Info
CC:
50
Service
Engine Oil Grade SAE:
15W/40
Engine Oil quantity (litres):
0.8
Valve Clearance Cold - Exhaust:
0.05 mm
Valve Clearance Cold - Inlet:
0.05 mm
Electrics
Voltage:
12v
Ignition:
CDI
Spark Plugs:
NGK-C7HSA
Spark Plugs (Iridium):
NGK-CR7HIX
Engine
Type:
Air Cooled 4 Stroke SOHC Single
Bore x Stroke:
39 x 41.4 mm
Compression Ratio:
10.5:1
Displacement:
49.5
Lubrication System:
Pressure splash
No. of Valves:
2
Starting:
Electric and Kick
Valve Train:
simple chain
Transmission
Clutch Type:
centrifugal
Final Drive:
Belt
Transmission:
Automatic
Misc.
Number Produced:
millions
Place of Manufacture:
China
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All information presented on the website is given to the best of our knowledge at the given time. All information is intended to only as a guide. A major Japanese manufacturer's quote:
We reserve the right to vary our specification with or without notice, and as such time and in such manner as we think fit.