dreese2005
Seaman Apprentice
- Joined
- Aug 21, 2010
- Messages
- 34
Hi to all and thanks to everyone for your help with the last issue.
A little history. I bought this boat motor and trailer that has been sitting for a few years. The motor is 1994 Johnson 112. I was and am still having a fuel delivery issue. I am pretty sure I have narrowed that to the fuel pump from the following.
Rebuilt carbs.
Replaced plugs
Replaced primer bulb.
Added clear inline fuel filter between bulb and motor.
I can pump the bulb and see the fuel filter fill up. I can start it and watch it run until the carb bowls empty and it does not draw any fuel from the filter.
Now to the more important issue. Compression.
Cylinder 1 90lbs
Cylinder 2 90lbs
Cylinder 3 20lbs
Cylinder 4 90 lbs
My question is what could be the cause besides broken rings and does anyone have either a schematic or a manual for this motor.
I am not going to take it to a shop as I am by nature a do it yourselfer. I like to learn things, make sure they are done right and get a great satisfaction from doing things myself. I don't have a lot of experience with outboards but I am prepared to tear into it.
I do currently have the tank half full of fuel with sea foam. Is there something wrong that running it with sea foam could possibly rectify. I.e. A stuck valve? Thanks for all of your input in advance.
A little history. I bought this boat motor and trailer that has been sitting for a few years. The motor is 1994 Johnson 112. I was and am still having a fuel delivery issue. I am pretty sure I have narrowed that to the fuel pump from the following.
Rebuilt carbs.
Replaced plugs
Replaced primer bulb.
Added clear inline fuel filter between bulb and motor.
I can pump the bulb and see the fuel filter fill up. I can start it and watch it run until the carb bowls empty and it does not draw any fuel from the filter.
Now to the more important issue. Compression.
Cylinder 1 90lbs
Cylinder 2 90lbs
Cylinder 3 20lbs
Cylinder 4 90 lbs
My question is what could be the cause besides broken rings and does anyone have either a schematic or a manual for this motor.
I am not going to take it to a shop as I am by nature a do it yourselfer. I like to learn things, make sure they are done right and get a great satisfaction from doing things myself. I don't have a lot of experience with outboards but I am prepared to tear into it.
I do currently have the tank half full of fuel with sea foam. Is there something wrong that running it with sea foam could possibly rectify. I.e. A stuck valve? Thanks for all of your input in advance.