recently acquired a 1972 6hp johnson seahorse mod#6r-720 , Ser# j3557230 , trying to find out what the normal compression should be for this motor i tested it at 80 lbs in both cylinders is this good or bad??? any help would be appreciated.....Bob H
To alcan........Motor starts and runs , think it needs carb work.....seems to flood a little am willing to fix as long as compression is close to normal.