compression? for 1973 evinrude 50hp

BIGcarpy50

Petty Officer 1st Class
Joined
Jun 15, 2008
Messages
268
just pressure tested my '73 evinrude 50hp and the top was at 130 and the bottom was about 145 is that a big difference or is everything ok.
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: compression? for 1973 evinrude 50hp

Within 10% is usually ok so you just squeak in there.
 
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