50 Hp Mariner ELPT from 98 runs irradically / not on all cylinders

Wilma

Recruit
Joined
May 19, 2011
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2
Started this spring to run irradically and not on all cylinders like it did not get enough fuel. In the beginning it was a question about putting it in neutral and giving it some rpms - then it went away - sometimes for the rest of the day.

My normal mechanic is caving in on this one. Leg and gaskets refurbished. All four ignitions has spark. Carbs appears ok. Has tried running the gas line directly onto the pump - Perhaps an electrical fault ??. My mech hasn't measured the electrical values. Does anyone have a link to the correct scheme of values to be measured for or any other ideas ??:confused:

Another perculiar item is that it runs warm with the thermostat in place. The thermostat opens nicely as it should. :confused:
 
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