what should the compression be on a 1989 150 black max
K krovar Seaman Joined Apr 17, 2011 Messages 71 Aug 14, 2011 #1 what should the compression be on a 1989 150 black max
Barnacle_Bill Admiral Joined Feb 8, 2004 Messages 6,469 Aug 14, 2011 #2 Re: compression My 83 ran around 120 lbs. But it is more important that they be within 10% of each other.
Re: compression My 83 ran around 120 lbs. But it is more important that they be within 10% of each other.
K krovar Seaman Joined Apr 17, 2011 Messages 71 Aug 14, 2011 #3 Re: compression if you pull only the plug your checking will it show lower than pulling all the plugs, thats what im getting, 105 with one plug out 120 with all the plugs out is it because the motor turns over faster
Re: compression if you pull only the plug your checking will it show lower than pulling all the plugs, thats what im getting, 105 with one plug out 120 with all the plugs out is it because the motor turns over faster
