Battery to run fuel pump to pre-pressurize system before start-up?

Mjunkie said:

Thanks! Did you just splice in a 9 volt connector in the wires going to the pump then? And just unplug the 9 volt after the sled starts?

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Sure can, For Years I have used a 9v to reverse the pumps when poor fuel closed smart valves.

? Bad Pump ?

I just had the same thing happen to my 2007 M1000 and it need a new fuel pump all together. I tested it by using my ATV battery. I have a battery tender in it so I hooked the tender lead up with a new connector and unplugged the fuel pump wire from the tank and with the 2 leads you have positive and negative, right. You can go either direction with the leads and it will either pulse on like mine did just a shock and nothing. Replaced the pump and its easier starting then it has been for about 3 years. My guess is that it was getting bad for a while. Don't buy a new pump from Cat as they are like $600. On ebay you can find one for $114.98 is what I paid and starts first pull now cold.