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Posted on Jul 08, 2010

Johnson Outboard model J50PLSIG will not start

Johnson J50PLSIG will not start when cold without quickstart in carb. Starts and runs fine when warm.

5 Related Answers

Anonymous

  • 63 Answers
  • Posted on Dec 16, 2008

SOURCE: engine not running

Let it dry out a day or so, perhaps in the sun or a warm place. Try again. If it still won't start, try to find a fuel line or fuel jet and inject some compressed air in to blow it out a bit. Good Luck!

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Anonymous

  • 52 Answers
  • Posted on Apr 13, 2009

SOURCE: 1974 60hp johnson outboard won't run on full throttle.

Carbs probably need to be cleaned and re-built. Common problem in outboards that havent been run in a while

x1745

  • 40 Answers
  • Posted on Aug 20, 2009

SOURCE: 9.9 johnson 4 stroke wo'nt idle

Your cabs need rebuild, something is stuck in the carb or air line cracked

If you have rebuilt the carb check for carb gaskett leak that caused and let the air flow in
When to choke is on the air is block and prevent air flow but allowed small amount of air to keep the engine running
After your engine warmed up the heat in the compression burn much faster so you have to let air in by turn off the choke
Good luck

Anonymous

  • 27 Answers
  • Posted on Sep 07, 2009

SOURCE: 15 hp johnson outboard misfiring

possibly c/shaft seal
ie induction collapse

Anonymous

  • 10865 Answers
  • Posted on Sep 16, 2009

SOURCE: 6hp Johnson outboard stalls & quits

go to an auto parts store and get a can of gasoline additive called seafoam. Read the label so you know how much to add to your 6 gallon tank. This stuff works wonders on outboard motors.

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Johnson outboard stalls when it warms up

Little Johnson outboards are famous for being very easy to start, So- first pump up the gas, then set the throttle open to the neutral stop -pull thru once -then set the choke to fully closed (look down the carb and see if it is) and pull thru 2 more times- open the choke. try again --If it is not running by now you have a bad ignition, or the engine has no compression. - very likely if you are running the wrong spark plugs. You may have some shattered reed valves.

See if the spark plugs are getting wet with fuel.
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My 1988 ( i think) 6hp Johnson outboard motor is always hard to start if it is cold. It can take 10 - 15 minutes of pulling on the cord to start it when cold but will start first go every time once it has...

I would suggest you replace the 2 coils. Also, is choke closing properly? The carb if never rebuilt, could cause this problem. A carb kit and 2 coils should not cost much, maybe 20 each for coils and 17 for carb kit. Make sure carb is adjusted properly with outboard in water and warmed up. Mixture screw should be turned in slowly clockwise until engine just pops(lean). Then slowly open it apprx. 1/8 turn. This will aid engine in starting next time. Also, make sure primer bulb firms up when squeezed.
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Need to know how to set up carb on 1985 johnson outboard. front adj on the carb got moved looking for starting point to get me close to running.

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Engine not running

Let it dry out a day or so, perhaps in the sun or a warm place. Try again. If it still won't start, try to find a fuel line or fuel jet and inject some compressed air in to blow it out a bit. Good Luck!
Dec 16, 2008 • Boating
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