Complete Manual to Help with all Chinese Scooters

Basic service, care and repair for Chinese or Asian made scooters from 50cc - 300cc.

Covers air cooled and liquid scooters.

This scooter manual does not include exact models. Since most Asian made scooters are simply branded by US distributors they all use the same engines. The engines are remakes of engines Made In Japan when first made.

US Scooter Engines

GY6 50 (139QMB) and 150 plus a GY6B 150 (157QMJ) and GY6B (158QMJ) (16 inch )Wheels Liquid Cooled 150

40QMB Two Stroke Minarelli 40QMB

Franco Morini Two Stroke TGB Hyosung Aprilia LC CN250 172mm Liquid Cooled Honda Style Vertical Liquid Cooled Engine from Honda Helix

Linhai/Yamaha 257cc/275cc Liquid Cooled Horizontal Engine Yamaha Design

There are some older engines used by Honda SYM Kymco that are vertical two stroke engines

The Yamaha Zuma 50 Two Stroke is very much like the Chinese 40QMB which is modeled after the Jog 90 NOT Jog 50