cylinder head assy w/o secondary air system SAS -101 OCTANE- for GY6 150cc 157QMJ

Complete 150cc cylinder head with valves mounted. Suitable for all GY6 150cc engines of the GY6 series 157QMJ (or as an upgrade when using a 150cc big bore cylinder on 125cc vehicles). The cylinder head is supplied without connection for the secondary air system. Any existing secondary air system is thus overridden and the resulting loss of power is eliminated. Can be used in both engine variants with and without SLS (secondary air system). Supplied as shown.

Note: Always check the valve clearance after installing the rocker arm bracket._{AI-translation}