1983 70 hp Johnson

[butch strals]

Hope someone can help. I am rebuilding this<br />motor that has sat for 12 years and for the <br />most part am done, except the engine when it<br />starts does not want to stay started and will<br />die shortly after starting. I have rebuilt<br />the fuel pump, put in new gas lines, have<br />new tanks, new plugs, cleaned the carbs. any<br />suggestions on how to help this motor keep<br />running? It doesnt want to idle at high or<br />low. It runs if I keep priming it.<br /><br />thanks, Butch

 

[Chinewalker]

Re: 1983 70 hp Johnson

Hi Butch,<br /> My money is on the fuel pumps. Those OMC pumps can be a bit tricky and only go together one way. One quick test to make sure the check valves are in right and operating is to blow in from one side of the pump and then the other. It'll only blow thorugh one way - the direction of the fuel flow. If it blows through in both directions, then somethings amiss.<br />- Scott