The photo shows your 4 batteries grouped. The 06 340 also has 4 batteries, 2 on port side and 2 on starboard side gunnels. Mine are wired parallel ON Each Side of the boat. Sea Ray is good about 'getting you home' with 2 engines.
Separate fuel tanks, batteries, ignition switches, keys and rocker...
That is normal factory, same as my 06 340DA. I've heard critiques of this but assume factory knows best. My starting batteries and house are split (one of each, two pair) on port and stbd. I think this allows more draw without being on charge. Should a house battery or bank lose charge, the...
Check foul fouling in the thruster cavity. May have picked up plastic or vegetation.
I haul out annually for cleaning and see a lot of marine algae growth in the cavity to clean out.
I have a Kohler Model 5 ECD-BBG. Seems you are on the right track. Adding to this thread for others.
Mine would start then stall, restart then stall, restart then run with bad smell of un-burned fuel.
Two cylinder engine, one side was not firing. Swapped plugs, side to side, same side not...
Alarm sounds on cold start up. Outdoor temp 55 degrees. Have not tried a warm start.
Assume a sensor. Have skills. Where to find a pdf service manual to locate sensor? Or other advice. 8.1 V drives, Thanks all.