Cylinder Kit, GY6 QJ Quingiang 125cc Keeway ARN F-act BAJA Benelli Stada Vento

Description

ITEM DESCRIPTION:
125cc Cylinder Kit with 52.4mm bore, 15mm wrist pin & 54mm stud spacing. For the QJ
engine
(Manufactured by the Quingiang Co.)
stamped Q
J153QMI. (Notice the wavy fin design). See below for more info.
NOTE:
This engine is a modified version of the GY6 125cc & 150cc engine, Most parts are not interchangeable with the GY6 engine.
Partial List of Models that use this engine: NOTE: Since this is a new
design, this list will be growing quickly
Andretti
Baja
Benelli
Keeway: ARN125, Genric 125, GT F-ACT 125, F-act 125, Matrix 125, RY8 125, RX9 LEONE
Strada
Vento
Yamati
NOTE:
There are at least 8 variations of the GY6 125 & 150cc engine: (likely more).
Please contact me if you're not sure which engine you have, I'll help to the best of my ability.
1) The standard GY6 125cc & 150cc (152QMI & 157QMJ) engine used on 95% of GY6 applications. Make sure you have straight fins and 54mm
stud spacing to be sure this is the kit you need. This engine can use up to a 61mm big bore kit.
2) "QJ" GY6 125cc & 150cc engines, stamped QJ152QMI, QJ157QMJ or QJ158QMJ) manufactured by the Quingiang Company. The head is taller than the standard GY6 head, the cylinder has wavey fins and the valve cover is held on with 2 bolts making it easy to spot.
NOTE:
there are other GY6 variations that look like this one but will not work (see below).
NOTE
: Even though the stud spacing is 54mm (same as the standard engine), the two small bolts will not line up so the cylinder and head are not interchangeable with the standard GY6 engine.
(The cylinder kit in this listing is for this engine).
3) Kazuma GY6: This variation is used only on Kazuma 150cc Falcon & Dingo ATVs and has engine stamp KZM157QMJ. This cylinder has wavy fins like # 2 but is unique to Kazuma.