Ensure a perfect, airtight seal between your engine and fuel system with the MotoTec USA GY6 Carburetor Insulator Gasket. Designed for the ubiquitous 125cc, 150cc, and 169cc GY6 (QMI/QMJ) engine platforms, this gasket is a critical component for maintaining a steady idle and optimal air-fuel ratios. Whether you are installing a new performance intake or performing a routine top-end rebuild, using fresh gaskets prevents the "lean-run" conditions that can lead to engine overheating and poor throttle response.
This gasket is a direct replacement for 152QMI, 157QMJ, and 161QMK engines. Common model applications include:
Mechanic's Note: Most GY6 intake setups require two of these gaskets—one sits between the cylinder head and the plastic insulator spacer, and the other sits between the spacer and the intake manifold. If your scooter is "hanging" at high RPMs after you let off the gas, you likely have an air leak at this junction. Always scrape off old gasket residue completely before installing these new ones to ensure a leak-free seal.
SKU: 1100-1063 Original Parts For Scooters SKU 164-167MPN: 3160048 Vendor: MotoTec USA USA
Compatibility:
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
