1996 Johnson 200 Venom Compression Readings

jdkirby

Recruit
Joined
May 23, 2005
Messages
4
I had a compression check done at a local marine dealer and got back the following information. For this particular motor are these readings bad, good, or excellent?<br />#1 - 110<br />#2 - 100<br />#3 - 110<br />#4 - 105<br />#5 - 100<br />#6 - 95
 

angus63

Captain
Joined
May 20, 2002
Messages
3,726
Re: 1996 Johnson 200 Venom Compression Readings

Appx 15% difference is okay but not great. I would search the forum for info on decarb and do a good decarb, then check the comp #'s again. Sometimes its all thats needed to line up the #'s .<br />Good luck
 
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