1989 Johnson 200 GT surging

[rcupp]

the above engine replaced bulb was acting like it was running out of gas. new OMC bulb did not help When it starts quitting if you pump bulb it will catch back up and rum a little then do the same thing again. cant find any leaks has VRO disconnected mixing oil. any suggestions thanks

 

[ledgefinder]

Re: 1989 Johnson 200 GT surging

If problem goes away for a bit when you squeeze the bulb, sounds like your fuel pump. Also could be the vacuum drive line to the fuel pump leaking, leaks in your tank to motor fuel line, or (and I've done this more times than I'd like to admit) the vent on the fuel tank is closed.

 

[Solittle]

Re: 1989 Johnson 200 GT surging

Also check for air leaks in your fuel line and all connectors. Air will cause the same symptoms.

 

[93bronco]

Re: 1989 Johnson 200 GT surging

i had thought my primer bulb was bad- so i replaced it.<br />it didnt cure problem, after trouble shooting everything i found it to be the female fuel line fitting.<br />i could actually hear air being released after pumping bulb.<br />one good thing is- my needle/seats are good along with all the other fuel lines.

 

[Solittle]

Re: 1989 Johnson 200 GT surging

You can replace the little o rings in the fuel connector rather than buying a new connector. The o rings provide the seal.

 

[backdraft]

Re: 1989 Johnson 200 GT surging

2K, use only a johnson /evinrude fitting. They have a revised fitting as well that is even better ,I 've heard. All the other aftermarket fittings are prone to failure. nevjb

 

[kclark1963]

Re: 1989 Johnson 200 GT surging

I was having the same problem with a 2000 115 hp Johnson and it turn out to be a small o-ring in the fuel pump. Hope this help.