9.5 hp johnson fuel lines

[hfb1957]

I have a 9.5 hp Johnson 1971 model year that started to just die out after running for a while. It runs longer than it would if it was just running gas out of carb after pumping. Sometimes it will run 10 minutes and sometimes only 3or 4 minutes then just die. I can pump up the bulb and it will run just fine( the Bulb doesnt seem to be getting as hard as it used to). usually not dieing out out for a long time then I will have to do it alll over again. I found the fuel line connectors were loose,so I tightened them up and it helped for a while now it is back doing the same thing again. Please any help will be greatly appereciated.

 

[F_R]

Re: 9.5 hp johnson fuel lines

You either have a bad fuel pump or you have a leak or restriction in the tank / hose. A sneaky leak is where the hose connects to the tank. Any gas squirts or sucking sounds there when you work the primer bulb? Even a small leak will let the fuel pump such air instead of gas.

 

[knight hunter]

Re: 9.5 hp johnson fuel lines

Check the fuel line from where it comes into the motor to the fuel pump, also from the fuel pump to the carb.