Pair of leak down test bungs that fit Yamaha tzr250 3ma, Suzuki rgv 250 and Aprilia RS250. These fit in the carb rubbers instead of the carburettor and form a perfect seal when clamped up. Block your exhaust ports off then you can pressurise the engine to look for leaks. Aim for the engine to hold 6psi for 6 minutes. 40mm in outer diameter, may fit other bikes. I had these manufactured in billet aluminium when I ran Gasket Guru, left over stock. Very useful even just to seal the intakes whilst cleaning or storing the engine. Top quality part.
This product would be ideal for motorcycle mechanics and enthusiasts working on high-performance Yamaha TZR 250, 3MA Suzuki RGV 250, and Aprilia RS250 bikes.
