This NCY Oil Decompression Tube for Genuine scooters and other bikes with GY6 engines replaces your current dipstick and allows for the release of excess crank case pressure.
We recommend installing this decompression tube with any cylinder kit.
Specifications:
- Oil and fuel resistant (27" long, inner diameter: 12mm, outer diameter: 18mm)
- Aluminum filler cap/tube adaptor: 17mm (thread size: 18mm)
- Aluminum tube end cap: 12.66mm
- White zip tie
- Stainless steel hose clamps
Compatibility:
| Genuine scooters | Scooters with GY6 engines |
139QMB-based 50cc / 80cc engines with the following engine codes:
| 139QMA | 139QMB | 1P39QMB | 1P39QMA-2 |
| YN139QMB | JJ1P39QMB | 139FMA-2 | BD1P39QMB |
| BN139QMB | 147QMD | Other QMA models | Other QMB models |
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", this product is compatible with your vehicle.
About NCY: NCY is the aftermarket performance parts leader for most popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified.
Made in Taiwan.
This product is intended for off-road use only.
This product is not intended for use on public roads or land.
*Performance upgrades are considered racing parts and are not covered by warranty.