Logo
FULL SITE MENU

Recent content by Joycejh11

  1. J

    1987 Johnson 90hp clean spark plug

    I know this thread hasn't been replied to in some time. I just wanted to come on here and post the solution to my problem in case anyone else is experiencing the same thing... I had replaced the plugs and wires I don't know how many times trying to get this cylinder to fire. One day I was out...
  2. J

    1988 Mercury 135HP 2.0l Upgrades?

    I've been researching some ways to get some higher performance out of my motor. I've got it on a 1988 Searay Seville 18'. Currently have a 19p ss prop and am pushing 45mph at 5k rpm I've found on some forums that swapping to the WH-34 carbs can improve performance substantially. I've also seen...
  3. J

    Sea ray 135hp can't figure out serial number

    I am having a very hard time finding parts for this motor. It is a 1988 sea ray 135hp v6. I know it's a mercury but the serial number doesn't bring up anything online. B334148 is the serial number on the transom mount. It runs well, would just like to go through the carbs and get some various parts.
  4. J

    1987 Johnson 90hp no charge

    My motor doesn't appear to be putting off any charge to the battery. Tested it with a multi meter and I get nothing but the batteries neutral voltage. I've looked at and cleaned all the connections coming from the stator. Anything I should try before replacing it?
  5. J

    1987 Johnson 90hp clean spark plug

    After running my engine for several hours I’m still having problems with 1 spark plug. The lower port cylinder’s spark plug is incredibly clean, even the threads. I’ve replaced the plug, coil, wire, and confirmed I have good spark. Any thoughts would be appreciated
  6. J

    1987 Johnson 90hp misfire

    Took the carbs back apart and found a bit of paper towel from cleanup plugging a jet. Got it all back together and in the water. I'm making about 33mph on my 18ft boat. Sounds very good and gets up and goes good. I looked at the plugs and the port bottom side is still very clean as if it hasn't...
  7. J

    1987 Johnson 90hp misfire

    Took it out again today. Same thing, one plug super clean. I hit the choke at WOT and it made the rooms jump way up. Taking the carbs apart again.
  8. J

    1987 Johnson 90hp misfire

    I've got 120+ compression on all 4 cyl, just rebuilt the carbs, I've got spark on all four cylinders but I seem to be having a misfire on both port side cylinders. Top left plug looks like it's running normal but the bottom left looks brand new after an hour of being run. Drop test showed the...
See more
Back
Top