Howdy, I've read these forums through and through, and you guys seem pretty helpful. Hopefully you can work your magic with me too... Here it goes.
I just bought a 1981 Evinrude 150 and its got a couple of "issues".
First of all, when driving the boat at the slowest speed, it tends to overheat, or at least a buzzer goes off in the box the throttle is mounted to. If I can crank the rpms up a little, go a little faster, and push the limit I can actually go in a no wake zone everything seems fine. I just got it out of the shop where they replaced the thermostats and the water pump, so I'm pretty sure thats not the problem.
Then a new problem hit me today. The engine was running a little rough at idle all morning, but we attributed that to possibly mixing the gas a little rich. At the end of the day we docked the boat to deflate a tube, and when we tried to start it again the trim stopped working completely (no sound or anything) and the engine would turn over but not start. A nice fellow boater volunteered to help me out. We thought maybe the battery went dead so we tried his battery. No luck. We tested for spark and found that there was no spark. We then spent at least 30 or 45 minutes in the 110 AZ heat searching for every fuse we could find. All were good. We plugged everything back in the way it was, and the trim started working, but the motor would not even turn over...no sound...just like the trim before. I searched around and found a connection that I might not have connected back tightly enough and on the first little turn of the key the engine started right up.
It was idling better than it had all day, running smooth without the little misses it was having earlier. Now my problem is that I have a motor that is currently running good with a problem thats waiting to happen again, and I have NO IDEA what it was in the first place, and since there's no problem now, I don't see a way to troubleshoot it. Do you guys have any clue about this?
I just bought a 1981 Evinrude 150 and its got a couple of "issues".
First of all, when driving the boat at the slowest speed, it tends to overheat, or at least a buzzer goes off in the box the throttle is mounted to. If I can crank the rpms up a little, go a little faster, and push the limit I can actually go in a no wake zone everything seems fine. I just got it out of the shop where they replaced the thermostats and the water pump, so I'm pretty sure thats not the problem.
Then a new problem hit me today. The engine was running a little rough at idle all morning, but we attributed that to possibly mixing the gas a little rich. At the end of the day we docked the boat to deflate a tube, and when we tried to start it again the trim stopped working completely (no sound or anything) and the engine would turn over but not start. A nice fellow boater volunteered to help me out. We thought maybe the battery went dead so we tried his battery. No luck. We tested for spark and found that there was no spark. We then spent at least 30 or 45 minutes in the 110 AZ heat searching for every fuse we could find. All were good. We plugged everything back in the way it was, and the trim started working, but the motor would not even turn over...no sound...just like the trim before. I searched around and found a connection that I might not have connected back tightly enough and on the first little turn of the key the engine started right up.
It was idling better than it had all day, running smooth without the little misses it was having earlier. Now my problem is that I have a motor that is currently running good with a problem thats waiting to happen again, and I have NO IDEA what it was in the first place, and since there's no problem now, I don't see a way to troubleshoot it. Do you guys have any clue about this?