If nothing works? make everything new!

Major engine damage on your China scooter? Or no desire to open the engine to change a crankshaft? In this case, replacing the entire engine is a good idea. Almost all Chinese-manufactured 125cc four-stroke engines use the same engine. Namely the version QMB139 or 139QMA / QMB or 152QMI of the proven GY6 engine. These motors are available in different versions. With secondary air system and without. In addition, in a short version with 743mm and in a long version with 835mm (length of the V-belt used). The engine power corresponds to the standard performance of the production vehicle and is about 12hp.

Before installing, check oil level and valve clearance and readjust if necessary! 

1000
  80+ sold
SKF 6203 2RSH

Product No.: BTS-752.06.37

EAN: 7316571855769

Manufacturer: SKF

Manufacturer Nr: 6203 2RSH

Shipping time: 5-7 business days

Inst. position:front left, front right

1000
  70+ sold
SKF 6303 2RSH

Product No.: BTS-752.06.59

EAN: 7316572075586

Manufacturer: SKF

Manufacturer Nr: 6303 2RSH

Shipping time: 5-7 business days

Inst. position:rear left, rear right