This high quality accessory is the oil decompression tube for 50cc, 125cc, and 150cc GY6 Engines from NCY NCY is well known in the competitive riding market as the brand to use when modifying your rideDescription This high quality accessory is the oil decompression tube for 50cc, 125cc, and 150cc GY6 Engines from NCY. NCY is well known in the competitive riding market as the brand to use when modifying your ride. Let Monster Scooter Parts be your first source for accessories and mods from NCY with our great oil decompression tube.Decompression tubes replace your dipstick and allow excess crank case pressure to be released. We recommend installing these tubes along side any cylinder kit.1100-1282 ? WARNING California Residents: Proposition 65 Warning Questions Ask a question about this product: Ask Question Thank you for the question!Questions are usually answered within 1-2 business days.