Orion Motor Tech Gasoline Compression Tester Kit, 8pc Petrol Engine Compression Tester Set with 0-300 psi Pressure Gauge 4 Adapters, Small Engine Compression Gauge Set for Motorcycle Car Truck

Great product and a must have for anybody who does their own engine repair work. Fast and easy to use save me from making a bad purchase on two separate occasions.

Me a servido mucho tengo tiempo usándola

Good tester but will not work on small engine.

As described

This product has the right idea, ill give it that. But I used this on a stihl bg55 blower i was having issues with, decided to check the compression with this tool, it showed less than 20psi. I figured the piston rings were bad so I tore the motor apart. Come to find out the tester just sucks. I used it on another engine im working on, which has good compression just by feel, but I wanted to test the tool to see if it was a fluke. That second tool with the spark plug in, has good compression, hook up the tester, and the piston seems to spin a lot more freely and once again only shows about 20psi. So something is leaking on the tester somewhere, and I saw some other buyers claimed the same thing. Don't waste your money on this tester. Im going to purchase the mityvac compression tester here soon as it's build quality seems a lot better. Saw a comparison video between the two and the mityvac has Schrader valve in the line, to keep the pressure in the gauge helping to give a more accurate reading.

Works great

A mí esposo le gusto

It works just like it should