Blog Events Upcoming Events Past Events Calendar Racing Interviews Magazine Press Rights to Ride Videos Videos Product Videos Instructional Videos Racing Videos Newsletter The Motion Pro Leak Down Tester is designed to check the percentage of cylinder leakage in a 4-stroke engine. A moisture free air supply of 70 PSI to 200 PSI is required. This kit is supplied with a cylinder leakage tester, three adapter hoses (10mm, 12mm, 14mm) and carrying case.WARNING!Wear eye protection to prevent eye injury from escaping gas and/or metal chips. We recommend thata qualified mechanic in a properly equipped shop perform this procedure.1. Perform all leak down testing with the engine cold. CAUTION: Introducing cold air into a hot engine can warp or fracture valves and/or other engine parts.2. Remove all spark plugs.3. Rotate the crankshaft until the piston of the cylinder to be tested is at top dead center on the compression stroke.WARNING!On some engines, the crankshaft will spin when air pressure...
