Description
CVK Idle Jet #37 for GY6 and 139QMB Engines
The CVK Idle Jet #37 is designed for use with CVK and PWK series carburetors, making it suitable for 139QMB and GY6 engines. This component plays a key role in regulating the fuel-air mixture at idle, which is important for engine performance. It is one of the scooter carburetors & jets that owners often need to replace for maintaining proper engine function.
Performance and Functionality
This idle jet is important for ensuring smooth engine operation during low-speed situations. As part of the carburetor system, it helps in achieving steady idling performance, which is particularly significant for scooters and mopeds. If your engine is experiencing rough idling or stalling, replacing the idle jet may resolve these issues.
Installation and Compatibility
Replacing the idle jet is a straightforward process that typically involves removing the carburetor from the engine. It's advisable to clean the carburetor thoroughly before installation to prevent debris from affecting performance. The CVK Idle Jet #37 fits several engine codes, making it a versatile option for various scooter models.
Specifications
- Jet Size: #37
- Thread Size: M6x0.75
- Overall Length: 28mm
Fitment
This idle jet is compatible with 139QMB-based 50cc / 80cc engines and 157QMJ-based 125cc / 150cc / 169cc engines. Below are the specific engine codes it fits:
- 139QMB: 139QMA; 1P39QMB; 1P39QMA-2
- YN139QMB: JJ1P39QMB; 139FMA-2; BD1P39QMB
- BN139QMB: 147QMD; Other QMA models; Other QMB models
- 157QMJ: 161QMK; 152QMI; 1P61QMK
- YN1P57QMJ: 1P52FMI; 154FMI; JJ157QMJ
- 1P57QMJ: BN157QMJ; BN161QMK-A; Other QMJ, QMK, and QMI models
Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.
Shop more: Scooter Carburetors & Jets · Scooter Parts
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