53 mm cylinder head gasket for 125cc GY6 QMJ152 QMI152 engines This cylinder base gasket is used on a wide variety of scooters and ATV brands and models that use a Chinese built 125cc GY6 QMJ152 QMI152 engine.Description 53 mm cylinder head gasket for 125cc GY6 QMJ152 QMI152 engines. This cylinder base gasket is used on a wide variety of scooters and ATV brands and models that use a Chinese built 125cc GY6 QMJ152 QMI152 engine.