I just replaced the impeller on my '78 Merc 700 and the water jacket cover seems to be leaking around all three spark plugs. It never did this before the new impeller but I noticed quite a bit more water pressure from the pee hole now. After reading about 20 or so posts about this common...
We just recently purchased a Starcradt 15' runabout with a 70hp outboard 700 series Merc. The engine runs strong but possibly not at its full potential. There is a RPM guage to the left of the steering wheel which indicates the motor runs at about 3800-4000 during full throttle on the...
