Hello,
I'm not able to start my 1993 Polaris Sport 440. When a little bit of fuel is poured directly into the cylinders the thing fires right up. I took the carbs out and cleaned them thoroughly. After tracking that the carbs were not getting fuel, I suspected a bad fuel pump. I can suck gas from the tank through the filter and through the fuel cut off switch. When the pulser hose is connected and the intake fuel port is connected, no fuel is pumped through the carbeurator ports. I removed the pulser hose to check for pulsating pressures. Indeed it feels as strong as it should. It is a rectangular one. I went and purchased a used mikuni 2-carb fuel pump, and was told they rarely go bad. Same results with the new fuel pump. What am I doing wrong? I even primed the fuel going to the pump and still no result.
Thanks
I'm not able to start my 1993 Polaris Sport 440. When a little bit of fuel is poured directly into the cylinders the thing fires right up. I took the carbs out and cleaned them thoroughly. After tracking that the carbs were not getting fuel, I suspected a bad fuel pump. I can suck gas from the tank through the filter and through the fuel cut off switch. When the pulser hose is connected and the intake fuel port is connected, no fuel is pumped through the carbeurator ports. I removed the pulser hose to check for pulsating pressures. Indeed it feels as strong as it should. It is a rectangular one. I went and purchased a used mikuni 2-carb fuel pump, and was told they rarely go bad. Same results with the new fuel pump. What am I doing wrong? I even primed the fuel going to the pump and still no result.
Thanks