1991 25HP Mercury

ligaliga

Cadet
Joined
Feb 7, 2009
Messages
7
I'm interested in buying this 2 stroke engine, and was wondering what should the compression be for this engine????? Has any one had any bad experiences with this yrs engine?????::confused:
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,284
Re: 1991 25HP Mercury

Ayuh,...

If you ask this in the Mercury Outboard forum,..
Rather than here in the Prop forum,..
You might get some Answers....
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: 1991 25HP Mercury

Generally minimum compression numbers are 100 psi and within 10% cylinder to cylinder.
 
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