ORIGINAL: cgroen
Shaun,
if they are JetCat's, there is a setting in the ECU that enables you to start one engine after the other, the sequence is a combination of the throttle stick and the AUX channel, looks easy enough to do
This is correct, however, you still need to be able to disconnect power to the ECU's individually in case you get a bad start and need to re-set an ECU (without shutting down the other engine). Just make the power connection to the ECU's or a plug/switch somewhere in-line accessible.
FYI, feeding two propane solenoids from one tank works fine with my A-10.
Craig