What kind/size compression gauge? By jjoshua20213 (Read 342 times)

[jjoshua20213]

Witch type would I need to buy? The bike is q 50cc gy6 139qmb

[jct842]

harbor freight sells a set for around $25 $30. that is what I have. But better than that you can put together two 0-150 gauges and a few fittings in what is called a leak down gauge for probably a bunch less that tells more. There are plans for building one in the library here. I just happened to have the compression tester when I needed on so I never built it. The leak down tester tells you not only how bad things are but where the problem is. you do need an air compressor though to be able to use one. john

[gatekeeper]

This is the one I got. Whichever one you get, make sure it has a M10 adapter.

www.harborfreight.com/compression-test-kit-66216.html

[jct842]

Looks like mine too but I thought I paid more but was quite a few years ago and prices were higher then.

[gatekeeper]

That one fluctuates between $19 and $29 all of the time. It all depends on when they decide to put it on a coupon.