Stevum
Seaman Apprentice
- Joined
- May 20, 2009
- Messages
- 40
Hello to all,
This is my 1st post on this forum & look forward to your help & expertise. I recently purchased a 1977 15 HP 15754M electric start outboard motor that's in great condition cosmetically but needs some motor help. I got this thing for $40 as at the time it would not shift, I had my suspicions & the 1st thing I did was drop the lower leg & sure enough the shifter rods had been disconnected. I lined everything up & re-***embled it & confirmed that I now had F,N & R. New problem, the motor was seized so I took some advice from this forum & others & laid the motor horizontal with the pistons vertical & filled the cylinders with diesel fuel each day for 3 days. I rocked the flywheel back & forth & the pistons broke free surprisingly easy. Thinking that I had a good thing going I mixed up a fresh batch of 25:1 fuel, hooked up the lines, got good bulb pressure, filled the water tank I use for testing, hooked up a battery & away we go. The motor would crank over very easily with no hesitations. After about 10 - 5 second tries over the period of 5 minutes nothing sounded promising. I pulled the plugs & found out I had no spark to either one. I did a compression check & each cylinder has an equal pressure of 90 PSI. My question to you guys is where would you start to find spark? I haven't disconnected the kill button yet as that would be an easy fix if that was the culprit. I'm afraid it could be the coil or power pack & I have to be honest my electrical skills are minimal. Any ideas on what I might be able to check with a multi-meter would be greatly appreciated as we all like to get them fixed the quickest & the cheapest if possible. Thanks for you time! Steve
Follow Up: I got a chance to tear into it further & discovered that the power pack had a serious overload at sometime before I bought the motor. The mounting holes were melted & so were the 2 leads coming out of the pack. I can replace this component but before I do I was wondering what may have caused this? Any ideas will help before I burn up another one. I thought maybe it would be a battery issue as this 15 HP does have electric start. Also, while I'm on here would it be OK to run this without a battery? I know some motors (like ATV's) are not suppose to be operated without a battery hooked up, maybe that was the original problem. Also, is the Evinrude power pack #582452 interchangable with the original power pack # 581924 ? Thanks!
This is my 1st post on this forum & look forward to your help & expertise. I recently purchased a 1977 15 HP 15754M electric start outboard motor that's in great condition cosmetically but needs some motor help. I got this thing for $40 as at the time it would not shift, I had my suspicions & the 1st thing I did was drop the lower leg & sure enough the shifter rods had been disconnected. I lined everything up & re-***embled it & confirmed that I now had F,N & R. New problem, the motor was seized so I took some advice from this forum & others & laid the motor horizontal with the pistons vertical & filled the cylinders with diesel fuel each day for 3 days. I rocked the flywheel back & forth & the pistons broke free surprisingly easy. Thinking that I had a good thing going I mixed up a fresh batch of 25:1 fuel, hooked up the lines, got good bulb pressure, filled the water tank I use for testing, hooked up a battery & away we go. The motor would crank over very easily with no hesitations. After about 10 - 5 second tries over the period of 5 minutes nothing sounded promising. I pulled the plugs & found out I had no spark to either one. I did a compression check & each cylinder has an equal pressure of 90 PSI. My question to you guys is where would you start to find spark? I haven't disconnected the kill button yet as that would be an easy fix if that was the culprit. I'm afraid it could be the coil or power pack & I have to be honest my electrical skills are minimal. Any ideas on what I might be able to check with a multi-meter would be greatly appreciated as we all like to get them fixed the quickest & the cheapest if possible. Thanks for you time! Steve
Follow Up: I got a chance to tear into it further & discovered that the power pack had a serious overload at sometime before I bought the motor. The mounting holes were melted & so were the 2 leads coming out of the pack. I can replace this component but before I do I was wondering what may have caused this? Any ideas will help before I burn up another one. I thought maybe it would be a battery issue as this 15 HP does have electric start. Also, while I'm on here would it be OK to run this without a battery? I know some motors (like ATV's) are not suppose to be operated without a battery hooked up, maybe that was the original problem. Also, is the Evinrude power pack #582452 interchangable with the original power pack # 581924 ? Thanks!