tmas suzuki
Cadet
- Joined
- Nov 20, 2012
- Messages
- 14
Well, I just bought my 2nd outboard motor. It's a Johnson 7.5 Seahorse. I believe the year is 1957, model is AD-11. What a classic, great looking motor. I bought it because it will make a great trolling motor on my old Glaspar, and it just looks so classy.
First I pulled the carbs and cleaned them, replaced fuel lines and bulb, and got fresh gas in the classy looking steel tank.
It started right up on the muffs, so we went for a launch. It started right up again and backed me out of the dock, we ler her warm up while we rigged up our trolling gear. I put her in gear and started putting forward. When I got into it, she died. Didn't really bog out or act starved for fuel, just shut off fast like a switch was flipped. She started up, ran for 10 seconds and died again and did NOT want to start at all after that.
So we jigged for a little bit and enjoyed the weather. Pulled her again an hour later and she started right up. Same exact situation though, warmed her up, ran for a minute and died.
I know VERY litttle about outboards, but with what I know about auto and snowmobile engines, I would guess this to be an ignition issue. I would think that part of the electrical system is overheating possibly and stops giving a spark. We checked for spark and still could see a visible spark, but I'm not sure how to test if it's a "strong" spark. I would think these engines have a coil...could that be what's overheating? I had an issue on my snowmobile where the coil would overheat and machine would die, and ten minutes later it would fire up like nothing was ever wrong.
Thanks for ANY help!
First I pulled the carbs and cleaned them, replaced fuel lines and bulb, and got fresh gas in the classy looking steel tank.
It started right up on the muffs, so we went for a launch. It started right up again and backed me out of the dock, we ler her warm up while we rigged up our trolling gear. I put her in gear and started putting forward. When I got into it, she died. Didn't really bog out or act starved for fuel, just shut off fast like a switch was flipped. She started up, ran for 10 seconds and died again and did NOT want to start at all after that.
So we jigged for a little bit and enjoyed the weather. Pulled her again an hour later and she started right up. Same exact situation though, warmed her up, ran for a minute and died.
I know VERY litttle about outboards, but with what I know about auto and snowmobile engines, I would guess this to be an ignition issue. I would think that part of the electrical system is overheating possibly and stops giving a spark. We checked for spark and still could see a visible spark, but I'm not sure how to test if it's a "strong" spark. I would think these engines have a coil...could that be what's overheating? I had an issue on my snowmobile where the coil would overheat and machine would die, and ten minutes later it would fire up like nothing was ever wrong.
Thanks for ANY help!