Valve-Adjusting Screws (Pair) GY6
ITEM# TT-26799
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Description
Valve Adjuster Screws for GY6 Motors
This pair of valve adjuster screws is made for 157QMJ-type motors that show up in 125cc, 150cc, and 169cc scooters. They help hold the correct valve gap, which affects how well the engine performs. They are one of the essential GY6 scooter parts that keep the motor running smoothly. If you're servicing or repairing your scooter, these screws are a component worth checking.
Compatibility
These screws work with several engine codes, including 157QMJ, 161QMK, 152QMI, and 1P61QMK. They also suit motors coded YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, and 1P57QMJ, among others. If your engine code contains "QM" or "FM," these screws will most likely fit your vehicle.
When to Replace
Consider swapping out valve adjuster screws if you hear unusual engine noise or notice uneven running. With use, these screws can wear or strip, which makes it hard to keep valve settings accurate. Checking them regularly lets you spot problems early and keeps the engine in good shape.
Specifications
- Set: 2 screws
- Thread Size: M5x0.50
- Fits: GY6 150cc (157QMJ) engines and 157QMJ-based 125cc/150cc/169cc engines with listed engine codes
Fitment
Fits:
- GY6 150cc (157QMJ)
How to choose: Compare the engine code stamped on your motor case with the codes listed: 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A, or other QMJ, QMK, QMI, or FM codes.
Where it goes: part #4 on the camshaft and valve diagram for the GY6 150cc (157QMJ).
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Cylinder Heads & Valves · Scooter Bolts, Screws & Hardware · Scooter Parts
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