10×1.0mm 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 (10×1.0mm) and 978424 drill fixture tool are separately available to aid installation in Twin Cams.
All B.T. XL and Buell XB models
Sold as: PR
JIMS, compression release valve set
179,74 €
10×1.0mm 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 (10×1.0mm) and 978424 drill fixture tool are separately available to aid installation in Twin Cams.
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