My D180 shut down when I hit the starter button. I don't have the battery backup option. Mainly because my battery could run it for days without recharging. To solve the problem I supplied it through a 4 amp diode then put a 10,000 MFD capacitor after the diode. During startup, the starter drags the buss voltage a little low for a split second. The capacitor keeps the voltage up and everything works. For what it's worth to anyone else. By the way it's a Lycosaurus 150 with a 750 cranking amp battery and only a 24" starter cable on a lightweight geared starter. I don't think you get a better system in terms of voltage drop in the starter system. It also did it with no compression ( plugs removed) so it doesn't take much to lower the voltage enough to make the 180 calf.
This works the tip might help someone. I wanted to watch my oil pressure during initial cranking. By the way it shows 30 PSI on the starter without firing.,
Al
This works the tip might help someone. I wanted to watch my oil pressure during initial cranking. By the way it shows 30 PSI on the starter without firing.,
Al