Designed to check percentage of cylinder leakage in a 4-stroke engine Can pressurize the cylinder with 60 psi of air with one air source of 70 to 160 psi The gauge will register the total leakage past the rings; head gasket; intake and exhaust valves Kit includes 10; 12 and 14 mm spark plug adapters; regulator and gauge- Fits the following motorcycles; or atvs
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