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Recent content by 100percentjake

  1. 1

    '81 90 horse V4; carb troubles

    Alright well update now that I'm back with hands on the motor. Bought a set of carbs that don't have massive leaky shafts. Cleaned thoroughly, rebuilt with genuine parts. Replaced the reed valves. 3 out of 4 cylinders had absolutely hosed reed valves. New gaskets throughout. Put it back together...
  2. 1

    '81 90 horse V4; carb troubles

    My 2-stroke experience is mostly limited to mopeds and dirtbikes but I assumed bad reed valves would show up as a low compression test because half of the fuel/air charge would blow back through the reeds instead of the transfer ports, leading to less compressible mixture in the cylinder itself...
  3. 1

    '81 90 horse V4; carb troubles

    It ran better than it did previously, but I wouldn't say "great". It was far from smooth and bogged a little when snapping the throttle open and as the day wore on it refused to idle. Even after sitting, getting it started again was damn near impossible. Plug color looks good, though, albeit a...
  4. 1

    '81 90 horse V4; carb troubles

    Hi all. Got a family heirloom Starcraft that has an '81 Johnson hanging off the back of it and I took a look at it this weekend and fixed a myriad of issues (battery cables, starter solenoid, incorrectly gapped plugs, intake plenum not properly affixed. At the end of it the boat ran better than...
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