For the last few years I have had an intermittent starting problem. The boat would start every time while at the dock, while hooked into shore power. However, when out on the water for an hour or so, the boat may start or may not. I would then shut down all instruments, fridge, cabin lights or anything else that was “on”. After a few minutes the boat might start or might not start. I started keeping track of temperature, humidity, length of time off the dock, etc. – I couldn’t find a pattern. It was very frustrating; a few times I would have to wait 15 minutes before it would start. I had the same problem this weekend in Raritan Bay, filled to the gills with fishing boats and then the wind died off, the perfect time to start the engine and dodge the always moving fishing boats. When I pushed the start button – nothing! I had even removed the power for the fans and dash – figuring I would get more power to the starter solenoid…still nothing. I was done; it had to be fixed ASAP. I read several dozen articles regarding this problem, some of which suggested grinding down the pins on the starter and starter solenoid. Others, suggested it was due to corrosion on the wires in the starting loop, key switch, momentary on (push button) and the wire leading to the starter solenoid. I found no corrosion and replaced both the key start and push button – no success, I still had starting problems. There were still more articles blaming the problem on the batteries - new AGM batteries installed and I still have the problem.... The solution: replace the 12 awg wire with a 10 awg wire from the key switch to the push button and replace the second 12 awg from push button to the starter solenoid. It was real easy and once you have all the necessary replacement parts, it takes about 15 minutes to fix. From the key switch there is a 10 awg wire coming in, on the other terminal there are three wires, a solid red, red with black stripe and white. The red with black stripe and solid red are for powering the fans and dash (alarm, lights and gauges). The white runs to the momentary on with another white 12 awg wire, from the second terminal, running to the starter solenoid. The first step was to fish, using an electricians “fish tape”, the wire through the console to the aft section of the boat. After fishing the wire thru, the connections were simple, 4 10-12 awg connectors with 8 awg rings. I left the boat on for about an hour, with everything “on” (water pumps, anchor lights, all cabin lights, radio’s, hot water heater, autopilot, etc). The boat started three times with ease. The true test will come later this week when I am out for a two hour sail and she either starts or doesn’t on the first try!