is 125 good on both for this old 1979 20 hp mercury ?? thanks for any help
C carl0099 Cadet Joined Jul 12, 2010 Messages 9 Jul 12, 2010 #1 is 125 good on both for this old 1979 20 hp mercury ?? thanks for any help
JB Honorary Moderator Emeritus Joined Mar 25, 2001 Messages 45,907 Jul 12, 2010 #2 Re: whats the compression for a1979 20hp mercury?? Old?? Since when is 31 old? 125/125 is great.
V verado7 Chief Petty Officer Joined Apr 28, 2009 Messages 511 Jul 14, 2010 #3 Re: whats the compression for a1979 20hp mercury?? great numbers and yeah no such thing as old if they were built before the mid 90's
Re: whats the compression for a1979 20hp mercury?? great numbers and yeah no such thing as old if they were built before the mid 90's
