Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

[234rick]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

I'm trying to find you a quick & cheap answer to your problem.

 

[AlTn]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

7/16" on the air gap....I think confusion is arising as to the fuel line "primer" bulb and the primer bulb on the carb...when you have it running again, try an inductive timing light on each plug wire to check for spark as the motor runs

 

[234rick]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

7/16" on the air gap....I think confusion is arising as to the fuel line "primer" bulb and the primer bulb on the carb...when you have it running again, try an inductive timing light on each plug wire to check for spark as the motor runs

There you go AITn I think you have it. I suspect there has been 10's of thousands of dollars spent on new power packs when it could have been fixed with a simple soldering job. And of course a new power pack also fixes the problem so people never find out it was a wire that broke.

 

[Malcolm123]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

Malcom if you want help you need to answer my questions. Did both clys. quit firing or just one ???????????????????????????????????

Sorry. I am out of town using somene else's computer.
Yes I checked both cylinders with a inline Spark Tester.

The light died on both cyclinders while trying to go WOT.

Thanks again nd sorry.
I have a laptop right now.

 

[Malcolm123]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

BTW

Im referring to the Primer Button that connects to the carb.

Thanks

 

[234rick]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

I sent you a PM

 

[Malcolm123]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

I sent you a PM

Thanks.
Checking it now.

 

[rockinrick989]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

I am having a similar problem on mine. I have a 1979 Johnson 140hp. It idles and revs high at home, but when I put it in the water it has problems. I warm it up and once I get going about 25mph it bogs down and dies. Eventually after pulling the motor cover off, taking off the permanantly installed gas cap, sometimes cleaning the plugs, taking off the gas vent hose, and playing with it for about 40 mins it will start back up and run forever. After it runs for awhile, I can put the cover on, gas cap on, vents on, and its fine. I have no idea what to do with it. I have cleaned the carbs, changed the lower unit (for other reasons), new plugs, new fuel pumps and lines, and new starter-cylanoid. It also seems as if it will do it when the tank is full. Any suggestions?

 

[Malcolm123]

Re: Johnson 1985 25hp motor stalls when given throttle. Long, but Detail.

Thanks to all that tried to help me.
I give up! The weather is cooling down now so im taking it to a guy who repairs
outboards!! lol

Thanks