Professional-grade and built for precision, the Yato Cylinder Leak Tester helps mechanics and DIY technicians quickly diagnose leaks and wear in gasoline engine combustion chambers by supplying compressed air and measuring pressure loss. This handy set includes a 100 psi (7 bar) pressure gauge, spark plug adapters (M12 × 1.25 and M14 × 1.5), and a quick-disconnect hose, all packed in a convenient carrying case for garage or field use. It accurately identifies common engine issues such as worn piston rings, leaking valves, or compromised head gaskets, saving you time and guesswork during troubleshooting. Designed with durable components and clear readings, the tool makes it easier to assess engine condition and decide whether further repairs are needed. Whether you’re servicing cars in a professional workshop or maintaining your own vehicle, this Yato tester delivers reliable performance and valuable diagnostic insight.