Aug 12, 2019 · A good compression tester for small engines: Actron CP7828A Professional Compression Tester Kit with 10mm, 12mm, 14mm, 14mm Long Reach, and 18mm Adapters $45 or so

Jul 6, 2013 · How do you perform an accurate compression test on a saw ? I've searched and found all kinds of stuff but nothing clear to me. Warm, not warm, run first and allow to cool, room temp (WTF is …

Jul 12, 2004 · I found this table to adjust for altitude when performing compression tests: Altitude Factor 1000 .9711 2000 .9428 3000 .9151 4000 .8881 5000 .8617 6000 .8359 7000 .8106 8000 .7860 It …

Feb 1, 2011 · I've got 6 Stihl chainsaws from 009 to 036 and they all have about 80 to 100 p.s i. compression according to my testing. From reports I've been reading, and in ads, like e-bay ads, …

Aug 25, 2013 · Got a new compression tester for my B-day. Tested my Stihl BR420C Magnum backpack blower and it is only showing 70-80 PSI...runs pretty good though. Tested...

Nov 4, 2012 · Compression testing an older Stihl FS85 trimmer. Only gets 75 pounds of compression. Typical chainsaw wants to see 125 minimum or 150 to 160 is better, I think. So do weedeaters need …

Oct 5, 2009 · I've worked on several brands of small engines (mostly trimmers & blowers) and tested the compression in them. Most seem to fall in the 120-145 psi range if there is no visible piston damage. …

Oct 10, 2014 · If you do not have the perfect tester and still want to rely on compression testing- use the tester you have on a known good engine, if the reading is around the same on both- assume they …

Jul 26, 2022 · Make sure fuel is flowing freely and keeps flowing. Compression via handle. Pop the muffler and look. Go to have air also. OMG it's got fuel injection!!!!!. Don't bypass the normal stuff. It …

Jan 26, 2011 · I just received another tool and it's a compression tester. I went testing through my saws I have around the house and first up was the 7311 with a new Caber ring I just installed. I have started …