GY6 Counter Balance Countershaft

GY6 Counter Balance Countershaft for 125cc to 150cc Engines

This countershaft is designed for GY6 engines, specifically models ranging from 125cc to 150cc. It serves a critical function in the engine's operation by balancing the internal components. As one of the important GY6 scooter parts, it ensures smooth performance and longevity of your engine. This part works with various engine identifiers, making it a versatile choice for scooter enthusiasts.

Function and Importance

The countershaft plays a major role in the engine's overall balance by connecting to various gears. It helps maintain efficient performance by reducing vibrations and ensuring effective power transfer. Regular inspection and replacement of this part can prevent further mechanical issues in your scooter.

When to Replace

It's advisable to replace the countershaft if you notice unusual vibrations, decreased performance, or if you're undertaking a complete engine overhaul. A worn or damaged countershaft can lead to more significant engine problems, making timely replacement important for maintaining your scooter's health.

Specifications

• Number of Teeth (Large Gear): 42
• Number of Teeth (Small Gear): 13
• Shaft Diameter: 15mm

Fitment

This countershaft is compatible with the following engine identifiers:

• 157QMJ
• 161QMK
• 152QMI
• 1P61QMK
• YN1P57QMJ
• 1P52FMI
• 154FMI
• JJ157QMJ
• 1P57QMJ
• BN157QMJ
• BN161QMK-A

If your engine identifier contains "QM" or "FM", this part is compatible with your vehicle.

Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.

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