Professional tool for commercial or occasional use Tests both mechanical and electrical fuel pumps. Checks for worn or defective parts in fuel pump and vacuum system. Diagnose improper timing, burned or stuck valves, leaking manifolds, improper fuel mixture, stocking choke and many more Suitable for use on most vehicles. Can be used to diagnose Spark misfires Poor engine compression Weak / rich mixture Ignition over advanced / retarded. Inlet manifold and carburettor air leaks Incorrect valve timing Poor fuel economy Balancing carburettors Turbo boost gauge Fuel pump testing
Spcifications: Large 31/2" diameter gauge with colour coded easy reading scales Test pressure up to 10 PSI / Test vacuum up to 28" HG Extra long heavy duty rubber hose 14mm and 17mm manifold adapter Brass quick release fittings for compatibility with most modern cars