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  1. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Quick update: Just checked compression: 120 psi in both cylinders. Spark jumps 1/2" on both leads. Also, I primed the fuel line bulb yesterday till the carb bowl was full. Bulb became rock hard and no fuel passing through the primer solenoid. I checked this morning (24 hrs later) before...
  2. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Hmm, I'll take that as a no... thanks again for the help!
  3. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Thanks Pappy! Out of curiosity, how do you feel about running in a 55 gallon drum? Better than a hose? Thanks,
  4. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Very good post Pappy! Thank you very much! I agree with everything you wrote and it is a good reminder of how the fuel flows through the system. The only thing I want to add is that fact that from my fuel pump I have one line that goes to a "T" just before the primer solenoid. From the "T" I...
  5. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Very possibly. I will go through the fuel lines and replace as needed. Thanks for the thoughts!
  6. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Just a quick update: So I adjusted the throttle cable out more and moved the throttle stop idle screw inwards allowing the motor to rev a little higher. Then I was able to richen the carb at idle with the idle mixture screw which brought the revs back down. The sneeze seemed to go away at idle...
  7. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    No worries pappy, I appreciate the input. My Johnson repair manual is only good up to 30 HP motors and the timing advancement setting is the same for the 25 and the 30 HP motors. However, I wonder if the timing setting is different for the 35 HP? I can't find timing information for the 35. Would...
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    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    I see my thread has been hijacked... It's some what related so lets see where this goes...
  9. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Yes, I originally suspected the same so I replaced both Reed gasket and intake manifold gasket. Same issue before and after the gasket change. I'll keep searching. Thanks!
  10. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Hoping so Craig. I've PM'd him. Thanks!
  11. S

    Help Needed. 1989 Johnson 25 hp converted to a 30/35 HP

    Hi, thanks for reading my post. So I have a 1989 Johnson 25 hp outboard that runs great in stock form. I recently changed out the carb and intake manifold from that of a 30/35 hp motor of a similar year. I've read multiple posts about others doing this with great success so I wanted to try it...
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