To start, the engine is a 2006 90 hp two stroke Yamaha with less than 1,000 hours. A couple of weekends ago I was fishing for five hours or so, moving from spot to spot, without issue.
On the last spot I was anchored for 30 minutes and was ready to move, but when I turned the key nothing happened. No noise, no clicking, no cranking, nothing. The kill switch was fine, there were no obstructions, and everything else on the boat worked fine (live well, lights, GPS). Also, there was no alarm or any indication that it was over heated or low on oil (though I checked and the oil was fine).
So, I pull the cowling off, take the fly wheel cover off and tie a rope around the fly wheel and crank it up. It started fine, but I didn’t want to push it so I headed back to the ramp, without issue. At the ramp I tried to start it on the trailer and the engine was tilted up. It still didn’t crank, but the motor alarm did come on this time.
I took it home and didn’t mess with it for a week and then yesterday tried to start it and it cranked up right away and ran fine. I did a search here and couldn’t find this issue. It is weird that the alarm didn’t come on when I was on the water, but did back at the ramp with the motor tilted up and then cranked fine a week later. It sort of sounds like an over heat issue, but I am not sure. Thoughts?