JIMS, compression release valve set - All B.T., XL and Buell XB models 970139 one on handle & one

one on handle & one on shaft

Chrome plated socket head (allen)

55CCA (Cold Cranking Amps)

T-ShirtTop-quality

Each size contained in kit is also individually listed below and may be reordered in packs of 10

JIMS, compression release valve set - All B.T., XL and Buell XB models 970139 one on handle & one10x1. 0mm threaded mechanical compression release valves, for most cylinder heads. Push in the button and pressure will vent out of the valve. When the engine starts, the valves automatically close. Designedl for hard starting high compression motors. Note: MCS 978425 thread tap tool (10x1. 0mm) and 978424 drill fixture tool are separately available to aid installation in Twin Cams.