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I have a 1977 sears 18/6 garden tractor with a onan engine 917.25191 with less than 200 hours on engine,.it is hard to start,but runs fine once started.It had been sitting in a shed for about 5 or 6 years,I took the carburetor off and let it soak in a carb solution. put it back together.it has new points and condenser,new plug wires,and plugs and is getting a good spark.I have put an electric fuel pump on the fuel circuit 1 to 1&1/2 psi.I have a filter between the fuel pump and fuel tank .All the safety switches are working good.sounds good when idle or running

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If the electric fuel pump is mounted higher than the fuel tank it will have problems getting suction. Be sure that it is mounted down on the frame rail (below the fly wheel is a good spot) so that the suction side is always submerged. Otherwise the pump will take awile to supply gas to the carb bowl. It may get it eventually, but it will burn itself up trying.

Posted on Dec 12, 2010

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