Search results

  1. S

    1988 Mariner alarm

    I have a 75 hp Mariner that I just purchased. I put it on the water for the first time yesterday and the throttle control beeps constantly from start up to wot. After reading prior posts it sounds like an oil or overheat alarm. The engine puts out a good stream of water and there is plenty of...
  2. S

    hydrofoil

    I Have A 9.8 Mercury On My 14 Foot Boat. Right Now It Goes About 12-13 Mph When I Am By Myself. Will A Hydofoil Increase My Speed Or Performance?
  3. S

    9.8 Mercury lower unit trouble

    I have a 1972 merc 9.8. While running across the lake the prop started slipping and motor started revving. I could still run it at very slow speeds and the prop would still spin. When I got home and went to remove the prop I noticed that it would slide back and forth on the shaft about a...
  4. S

    Weight of 25 hp Mercury

    I have a Mercury 110 9.8 that weighs @70 lbs. I am thinking about going to a used 25 hp for my 14 foot mini bass boat (wood floor and raised front deck, bass seats and other accessories). Does anybody know the approximate weight of an older 25 hp motor? Also, would it double my mph?
  5. S

    propeller depth

    I have a 14 foot v bottom boat that I converted into a mini bass boat with a raised front deck and a floor installed all covered with marine carpet. The motor I have is a Mercury 110 9.8 horse long shaft that runs great. The bottom of the prop is about 13 inches lower than the bottom of the...
  6. S

    Black Fluid from 9.8

    My 1972 9.8 has started leaking some black fluid after I run it and does for several days after. I cant really tell where it is coming from. It just started doing it this year. Is this lower unit lube or unburned 2 cycle oil and what should be done to fix this problem?
  7. S

    fuel pump check valves

    Just got my new check valve kit and installed. Motor wont stop until I shut it off. It is a thing of beauty. If anybody gets a fuel pump kit for an old motor, make sure it has the check valves in it and not just the diaphram and gaskets. Changing those first could have saved me alot of time...
  8. S

    fuel pump check valves

    I have been having problems with fuel pumping to the carb on my 1972 9.8 110. I ordered a check valve kit that should be here this weekend. Can anyone out there tell me how you can tell if they go bad and could it totally cause the pump to fail?
  9. S

    Seafoam usage

    My 9.8 mercury is still not pumping gas properly. The compression is 120 on both cylinders, I put a new pump kit (gaskets and new diaphram), new bulb and hoses, new pulsator line and new plugs late last year. The first time I ran it this year it was a few weeks ago with last years gas that had...
  10. S

    Fuel Issues

    I have a 1972 mercury 9.8 that will only run for any amount of time when I continually pump the primer bulb. I just replaced the diafraghm, the primer bulb is new, the hose from the tank to the the motor is new and I just replaced the air line from the crankcase to the fuel pump. After it...
View older results
Top