Mercury 200HP compression?

ruel42

Seaman Apprentice
Joined
Apr 10, 2001
Messages
30
What is the compression range for a 93 Mercury 200HP? Thanks for the input!!!
 

MERCMAN

Seaman
Joined
Oct 13, 2000
Messages
73
Re: Mercury 200HP compression?

120 TO 125 PSI AND NO MORE THAN 15 PSI DEFFERENCE
 

Odyssey

Recruit
Joined
Apr 20, 2002
Messages
4
Re: Mercury 200HP compression?

How about a 1998 200HP Bluewater... the same ??
 

MURX

Petty Officer 2nd Class
Joined
Oct 21, 2001
Messages
117
Re: Mercury 200HP compression?

My local dealer tells me 93 and later have less compression than earlier models, and he also said something about kestone rings giving lower cold compression readings. mine did come back with 120 to 125 in all six
 

Odyssey

Recruit
Joined
Apr 20, 2002
Messages
4
Re: Mercury 200HP compression?

Reason I aksed is that I just purchased this boat and I saw last year it had 125 recorded, this year it was 115 and 117 on all 6, so I was wondering if I was OK....
 
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