DAYUAN 8pcs Professional Petrol Engine Compression Tester Kit Set for Automotives and Motorcycles

Very nice tool. For the price, a compression test tool like this is a must. Been working on golf carts lately and the attachments fit any and all spark plug sizes. Gives an accurate reading of compression and the condition of the cylinder rings…first thing to rule out in the life of an engine. You don’t have to crank this in, hand tight works fine. So far I’ve tested my Echo chain saw, Echo leaf blower , Honda power washer, Honda ATVs, EXGO golf cart and Gravely lawn mower. Simple, easy, accurate and a great diagnostic tool for the shade tree mechanic in your home.

Works as you'd expect, no issues were encountered. Overall it works exactly as you'd expect. There are 4 different thread sizes, one of which worked on my 1996 Suzuki Carry (F6A engine) with DCPR7E spark plugs. It was pretty difficult to thread in the connector while holding it from the other end of a long rubber tube, but I don't see how that could have been easily remedied. Overall definitely worth the $13.

Great product, great price.

Easy to read and operate, seems good quality, did what I bought it for, the compression seemed accurate with what was going on with the engine. Different connectors allows fit for various size spark plugs. Would recommend.

cant beat price and works

Great quality product. Seems to be pretty accurate on the pressure. I love all the adapters. I had bought one of these when I was a GM mechanic and paid well over 200.00 for it. This one does just as good for a 10th of the price. I really like the rubber outside of the gauge. Gives it a really nice feel. O rings stop any leaks from occurring. I would recommend this to anyone that needs to do a compression test.

WORKS GREAT FOR SEVERAL DIFFERENT VEHICLES. DEFINITELY WOULD RECOMMEND.

feels cheap but I haven't used it a ton no real trouble using it

Very easy to use, seems like a quality product, I used it to test compression on my six cylinder motorcycle. Very happy with the results. It was delivered a day early as well. Thank you very much.

Pour le prix et la qualité cela convient très bien pour un particulier. Je pense qu’il est assez précis (au niveau de la marge d’erreur) car testé plusieurs fois sur le même cylindre. A voir désormais avec le temps mais il n’y a pas de raison. En tout cas imbattable niveau qualité prix

No complaints and the price is incredible. Works absolutely fine on a 2017 Mini 3 cylinder engine. This engine has a very narrow spark plug hole so I thought it might not fit but the selection of adaptors included one that did fit. It feels decent quality, maybe not super accurate at this price but as a ballpark and for comparing cylinders it's spot on. If you can remove spark plugs then you can use this, it's super simple. The case is handy to keep everything together and clean. Very happy wirh this item and arrived next day as promised.

Todo bien, parece preciso en la medida

まだ使ってないですがそれなりのいい作りでした