JIMS®, a premier manufacturer of performance parts and specialty tools for use on Harley-Davidson®, has just released the new JIMS® Dual Gauge Leakdown Tester, No.782, for use on all models including Twin Cam, aftermarket, and Metric motors. The hose assembly features both 14mm and 18mm spark plug threads. This easy to use and understand gauge also includes a 10mm and 12mm adapter for Metric motors. JIMS Dual Gauge Leakdown Tester will troubleshoot cylinder leakdown issues such as; valve seat issues, bad rings, bad head gaskets, etc. For more information find JIMS® on the web at www.jimsusa.com, become a JIMS facebook fan, or call 805-482-6913.