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  1. W

    86 150 stumple - Johnson

    I had a whole bunch of problems with this 150. Long story short I tore the whole motor down and put all new power head gaskets in. New carb kits and jets. New valves below the carbs (can't remember what there called) New coils, power packs and stator. New voltage regultor and also plugs...
  2. W

    1986 Johnson 150 Check Valves / Recirculation valves Diagram

    Need help with a diagram. I put all new gaskets in my power because crank seal was leaking. Now putting new fuel lines in. I replaced all check valves but not sure on the routing of the lines. I attached a pic of how it was but does not match any diagrams i have found. Everything i see has lines...
  3. W

    1986 Johnson GT 150HP Trouble

    Been reading these forums for a few days and got some mixed feelings on some of my problems. I have a 1986 GT150 on a hydra sport. When I bought the boat of coarse the guy said it ran good. Well finally got it out and couldn't got more than 24 mph out of it and every time you stop you have to...
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