Articles Posted in the " JIMS " Category



  • Harley Twin-Cam: JIMS Piston Jets Tester

    Harley Twin-Cam: JIMS Piston Jets Tester

    Motorcycle Tools

    There is no doubt that the lifeblood of your Harley-Davidson’s Twin Cam engine is its oiling system.

    Crucial to oiling yet often overlooked are the piston jets. Located deep inside the Harley-Davidson’s engine cases, it’s hard to verify whether the piston jets are functioning properly…until now.



  • JIMS: Harley Mini Valve Spring Test Gauge

    JIMS: Harley Mini Valve Spring Test Gauge

    Harley Tools

    The new JIMS Mini Valve Spring Test Gauge No.1090 provides a solution for accurately checking valve spring pressure on Harley-Davidson motorcycles.

    This easy to use spring tester may be used in a bench vice or an arbor, hydraulic, screw, or drill press and will check any Harley-Davidson style valve springs, including early
    and late Conical Springs.


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