TreemanMI
Cadet
- Joined
- Aug 27, 2018
- Messages
- 6
I’ve had this outboard for about 7 years. It ran okay for a couple years, then wouldn’t start at all one season. Gave it the whole treatment - rebuilt carb, new plugs, new fuel tank and line and have only ever run ethanol free fuel in it since.
Last fall we took it out To scout for hunting Spots and ripped around for about 2 hrs. It ran flawlessly. Next morning it would not start at all. Wouldn’t even fire no matter what we tried even though it had spark and fuel. so I put it in storage and broke it out this season to see what the deal was. Here’s what I did based on reading multiple posts on multiple forums and it still runs poorly
-I flushed the fuel system and tank and check every connection.
-cleaned the carb (it wasn’t even dirty) By completely disassembling and soaking in berrymans then followed up with multiple carb clean sprays/compressed air cleaning.
-new plugs
-checked all electrical connections to coils/CDI - all good
-cleaned the timing belt cog sensor with some fine sandpaper
-compression is good on both cylinders
First test run it was a PITA to get it to idle. But finally I got the idle screw dialed in. Took it on the lake and it would run but took a while to get started. But it had much less power and the boat wouldn’t plane out. WOT felt like 50% or less power than normal.
It would randomly not want to start after shutting it down while we were out. So I kicked up the idle speed screw a little and that seemed to help. But still no power at WOT and it was chugging like it was starving for fuel.
next time out the damn thing started up fine then would die at low rpms. Then while trying to start it was spraying fuel out the carb vent. I figured the float was stuck open so I pulled the carb again and cleaned with spray again. Put it back on and same issue.
ive worked on dozens of outboards before. This one has got me so mad I want to drop it at the scrapyard so no poor soul will ever have to deal with it. What am I missing? Electrical issue? Fuel pump? Float/needle still causing this? Any help would be appreciated.
Sorry for the long winded post but I just want to give you a good picture of what I’ve gone through
Last fall we took it out To scout for hunting Spots and ripped around for about 2 hrs. It ran flawlessly. Next morning it would not start at all. Wouldn’t even fire no matter what we tried even though it had spark and fuel. so I put it in storage and broke it out this season to see what the deal was. Here’s what I did based on reading multiple posts on multiple forums and it still runs poorly
-I flushed the fuel system and tank and check every connection.
-cleaned the carb (it wasn’t even dirty) By completely disassembling and soaking in berrymans then followed up with multiple carb clean sprays/compressed air cleaning.
-new plugs
-checked all electrical connections to coils/CDI - all good
-cleaned the timing belt cog sensor with some fine sandpaper
-compression is good on both cylinders
First test run it was a PITA to get it to idle. But finally I got the idle screw dialed in. Took it on the lake and it would run but took a while to get started. But it had much less power and the boat wouldn’t plane out. WOT felt like 50% or less power than normal.
It would randomly not want to start after shutting it down while we were out. So I kicked up the idle speed screw a little and that seemed to help. But still no power at WOT and it was chugging like it was starving for fuel.
next time out the damn thing started up fine then would die at low rpms. Then while trying to start it was spraying fuel out the carb vent. I figured the float was stuck open so I pulled the carb again and cleaned with spray again. Put it back on and same issue.
ive worked on dozens of outboards before. This one has got me so mad I want to drop it at the scrapyard so no poor soul will ever have to deal with it. What am I missing? Electrical issue? Fuel pump? Float/needle still causing this? Any help would be appreciated.
Sorry for the long winded post but I just want to give you a good picture of what I’ve gone through
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