MEP-804a no start (no power to fuel shutoff solenoid), it DID run recently.

[Guyfang]

1-12.8.2 Field Flash. When the engine reaches sufficient speed (900 rpm), the magnetic pickup causes a set of contacts in the crank disconnect switch to close and energize the field flash relay. This circuit provides current to the exciter field windings which sets up an electromagnetic field. The field current is necessary for the set to generate sufficient voltage for the voltage regulator to begin controlling the output voltage of the generator set. The field flash circuit is maintained until the MASTER SWITCH is released from the START position.

1-12.10 Voltage Regulation System.The voltage regulation system (Figure 1-11) consists of the AC voltage regulator, VOLTAGE adjust potentiometer, and power transformer. The AC voltage regulator senses and controls the generator output voltage which is operator adjustable within the design limits by use of the VOLTAGE adjust potentiometer. The power transformer provides operating power to the AC voltage regulator. The output voltage is indicated by the AC voltmeter (VOLTS AC) on the control panel.

 

[Cgray]

Do you get voltage if you hold it in "start" after its running?

Post 1000, and its my birthday. Woohoo!!

I am having a similar problem.
If I do hold the master switch at start position I do get power.

When I release it to prime and run, I lose all power.

Any suggestions?