I have a 1969 Evinrude 115 Electroshift 115983E. I have had the carbs rebuilt and the compression is great. The problem that I have is when I get the boat under a load and beyond half throttle it bogs down and falls flat on it's face. I just purchased a new fuel line that I am going to install thinking that it is possible that the old one is collapsed inside. When I purchased this boat it hadn't run in about a year and a half and I had to do a little work to get it started.
The previous owner had gotten frustrated because it wouldn't start. There was a bad connection on the ignition switch that they overlooked. Instead they had replaced the solenoid with one for a car which still wouldn't allow it to start. They then went on to replacing the battery cables. When I got it home I found the connection issue and replaced the switch because it wouldn't stay tight. I could only get it to start by jumping the connection and after further review I noticed that the solenoid was wrong and checked it against the other solenoid that they had for it. Turns out they had put the wrong one on and a car solenoid will not work with a Johnson/Evinrude. So after swapping them back out it fired off with the key. The boat idled fine and would rev up. I took it out to test run it on the water and things went down hill in a hurry. I went to throttle up and it died. Did this several times and I had to get towed in. I noticed that there was a air leak on the fuel tank due to a stripped fitting so I replaced it. Relaunched and tried again, getting the same issue. I took it in to one of the best shops in San Diego that knows Evinrude's really well. They did a compression test and then rebuilt the carbs because they were in rough shape and wouldn't hold an adjustment. Apparently somebody had spun the screws all the way out on the upper and all the way in on the bottom.
I took the boat back out the day after Thanksgiving. Fired up and ran just fine. Dropped the hammer and it just bogged down and wouldn't get up on plane. If I pulled back on the throttle it would run about 5-10 mph and that is all I can get out of her. At the end of the day I shut it off and went to restart and got a high pitched whine. The nut on the end of the starter backed off and the gear popped off sitting on top of the flywheel. I fixed that and it fired off. When I was strapping the transom down on the trailer I noticed that the port motor mount was cracked.
Does anyone have any suggestions as what else to check or try to get the boat to run like it should? I am going to check the linkage as well to see if it is out of whack. Other than that I am scratching my head as to what's wrong. It is possible that the cracked mount was causing the engine to twist and bind and there could be a blockage in the fuel line. It just seems odd that it is starving for fuel after a rebuild on the carb.
The previous owner had gotten frustrated because it wouldn't start. There was a bad connection on the ignition switch that they overlooked. Instead they had replaced the solenoid with one for a car which still wouldn't allow it to start. They then went on to replacing the battery cables. When I got it home I found the connection issue and replaced the switch because it wouldn't stay tight. I could only get it to start by jumping the connection and after further review I noticed that the solenoid was wrong and checked it against the other solenoid that they had for it. Turns out they had put the wrong one on and a car solenoid will not work with a Johnson/Evinrude. So after swapping them back out it fired off with the key. The boat idled fine and would rev up. I took it out to test run it on the water and things went down hill in a hurry. I went to throttle up and it died. Did this several times and I had to get towed in. I noticed that there was a air leak on the fuel tank due to a stripped fitting so I replaced it. Relaunched and tried again, getting the same issue. I took it in to one of the best shops in San Diego that knows Evinrude's really well. They did a compression test and then rebuilt the carbs because they were in rough shape and wouldn't hold an adjustment. Apparently somebody had spun the screws all the way out on the upper and all the way in on the bottom.
I took the boat back out the day after Thanksgiving. Fired up and ran just fine. Dropped the hammer and it just bogged down and wouldn't get up on plane. If I pulled back on the throttle it would run about 5-10 mph and that is all I can get out of her. At the end of the day I shut it off and went to restart and got a high pitched whine. The nut on the end of the starter backed off and the gear popped off sitting on top of the flywheel. I fixed that and it fired off. When I was strapping the transom down on the trailer I noticed that the port motor mount was cracked.
Does anyone have any suggestions as what else to check or try to get the boat to run like it should? I am going to check the linkage as well to see if it is out of whack. Other than that I am scratching my head as to what's wrong. It is possible that the cracked mount was causing the engine to twist and bind and there could be a blockage in the fuel line. It just seems odd that it is starving for fuel after a rebuild on the carb.