Search results

  1. C

    90hp Johnson residue on plugs

    Another few question about my 2000 90hp Johnson V4. While it always cranks, it takes several 5 sec. choked key turns with a freshly primed bulb (good 87 octane and TC-W3) then seems to idle rough even after it is warm. Maybe I'm expecting too much but why doesn't it crank up on the first or...
  2. C

    2000 90hp RPM change w/different prop

    Thanks to everyone who have helped me with this so far. For those who aren't familiar with my situation, I'm in the process of trying out some different props to replace my my slightly pitted aluminum 14x19 prop on my 2000 Johnson 90hp. My first (and only so far)test prop is a 14x21 stainless...
  3. C

    90hp Johnson Speed/RPMs

    If I want to have better top end speed, should I increase or decrease prop pitch? What will this do to my RPMs? My 2000 Johnson 90hp V4 is turning 5300 rpms at WOT with a lightly loaded 17 footer.(40mph) This is with the standard aluminum 14X19 prop. It has good hole shot. The transom ID...
  4. C

    90hp Johnson rough idle

    I have a 2000 90hp Johnson V4 that I bought used a few months ago. In the past (on other OB engines), I have disconnected the fuel line from the engine and let the engine run itself out of gas before trailering. With this Johnson 90hp, the fuel lines run into a rubber boot before going into...
  5. C

    Johnson 90hp slipping in turns

    Ahoy!<br />I just had a 2000 90hp Johnson with low hours installed on my 17ft Astro. (The original 1992 115hp Mercury's crankshaft broke so I opted for a newer engine rather than a repair that would have cost almost as much) I'm somewhat dissapointed in the 10mph loss in top end speed. (from 52...
Top