1967 evinrude 3hp compression

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,269
Have you heard this motor run ? -----Have you tested / calibrated the test guage ?------Many guages / techniques show different results.-----How long have you owned this motor ?
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
I would say close to normal. Being even is is good. It warrants getting good spark and trying it with some 2 stroke starting fluid or a squirt of
outboard mix.
 
Joined
Dec 20, 2011
Messages
9
The motor runs great, starts first pull, idles good, I was just curious because most of my other outboards are in the 70 - 90 psi range. When I tested the 3hp and only got 50 psi, it made me wonder if that was too low.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
If it runs good don't worry about it. You may want to do a decarb on it though.
 
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