1994, 115hp Johnson

[boathelper123]

I am working a 1994 115hp Johnson and have had in the water and after 30 minutes it stalls out. I am able to start it and go WOT for a few but then it dies. It gets about 155 deg but no alarms at all. I have tested the Diode in the temp and its good. All systems componets check out in the shop. this only happens in the water. Any info would be great.

 

[Jack Shellac]

Re: 1994, 115hp Johnson

Welcome. Take a look at your fuel hoses and tank. Does the primer bulb flatten out when it stops running? Your tank vent may be stopped up or closed and creating a vaccum in the line. When the motor stops, it allows just enough fuel to get through to run for a while. Just my guess.

 

[boathelper123]

Re: 1994, 115hp Johnson

I ran it on a seperate fuel tank and it still did the same thing. The fuel pulb did not go flat after running and it seamed the longer I tried to start it the harder it got to start. I will be tested it tomorrow. I replaced the sensor and will see what tah does.