Yamaha 2001 250hp two stroke model turz. Engine was stored 18 months and now the fuel pump as no sound,and no 35lbs of psi at the schrader valve.Got rid of all old gas in main tank, new water/fuel separater,new engine fuel filter. I now have the fuel pump on the table and want to know if I can hook the blue wire terminal on the fuel pump directly to the negative post on a 12v battery, and the red wire terminal directly to the positive post to check it? Prior to pulling the pump I was getting 12v with just key on, blue wire to engine ground and cranking engine I got what looked like was a couple of volts,but I was 8feet away.Didn't check the red terminal to ground. I'm now convinced to get a trusted mechanic to prepare these engines for storage.