Prima's 5mm main jet kit for GY6 and CN250 CVK carbs includes jets in 10 different sizes: #100, #105, #108, #110, #113, #115, #120, #125, #130 and #140.
Jetting is something that takes trial and error.
Original Parts For Scooters SKU 114-38-45
Features
- 10-piece set of 5mm main jets
- Keihin round-style jet profile for compatible CVK carburetors
- Includes sizes #100, #105, #108, #110, #113, #115, #120, #125, #130, and #140
- Supports fuel-mixture tuning across a range of engine and intake setups
Specifications
- Keihin round-style main jet
- Thread size: M5x0.80
- Overall Length: 8mm
- Packaging may vary from product photos
Model Fitment
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
| 157QMJ |
161QMK |
152QMI |
1P61QMK |
| YN1P57QMJ |
1P52FMI |
154FMI |
JJ157QMJ |
| 1P57QMJ |
BN157QMJ |
BN161QMK-A |
Other QMJ, QMK, and QMI models |
Don't see your engine listed? If the engine code includes "QM" or "FM" and you're running a CVK carburetor, this product is compatible with your vehicle.
About Prima: Prima is the industry leader in premium scooter accessories, service parts and scooterist protective apparel. Prima brand products are designed direct-fit for all popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, Royal Alloy and GY6 / QMB powered scooters.