GY6 Counter Balance Countershaft
ITEM# TT-15600
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Description
GY6 Counterbalance Countershaft for 125cc to 150cc Engines
This countershaft fits GY6 engines in the 125cc to 150cc range. It helps balance the engine's internal parts. If you are browsing GY6 scooter parts, this is a versatile option for scooter owners who want steady running and a longer-lasting engine.
Function and Importance
The countershaft contributes to the engine's overall balance by meshing with several gears. It supports efficient running by cutting down on vibration and keeping power moving through the drivetrain properly. Checking this part on a regular basis and replacing it when needed can help you avoid further mechanical problems on your scooter.
When to Replace
Consider replacing the countershaft if you feel unusual vibration, notice a drop in performance, or are doing a full engine rebuild. A worn or damaged countershaft can cause larger engine issues, so replacing it promptly helps keep your scooter in good condition.
Specifications
- Number of Teeth (Large Gear): 42
- Number of Teeth (Small Gear): 13
- Shaft Diameter: 15mm
- Fits: GY6 150cc (157QMJ) engines and related 125-169cc QMJ, QMK and QMI engines
Fitment
Compatible with:
- GY6 150cc (157QMJ)
- GY6 157QMJ-based 125cc, 150cc and 169cc engines (engine codes 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A)
- GY6 other QMJ, QMK and QMI engines (engine code contains QM or FM)
How to choose: Compare the engine code stamped on your engine case with the codes above, or confirm whether the code contains QM or FM.
Where it goes: part #4 on the transmission diagram for the GY6 150cc (157QMJ).
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Parts
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