As the title states, I have an old Johnson 3hp 2 stroke outboard. The model on the plate is JW22C. I received this motor from my brother-in-law and it wasn't running. After reading a *lot* of posts here and elsewhere online, I've managed to get it running. My issue is that even when following these instructions, I can't get the motor to do more than idle, without dying out.
After starting the motor, I can adjust the throttle anywhere between the 'START' and 'SLOW' and it just runs and runs. But, if I go anywhere past 'START' it bogs down and dies. Any ideas?
Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.
Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running.
Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting.
When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.
After starting the motor, I can adjust the throttle anywhere between the 'START' and 'SLOW' and it just runs and runs. But, if I go anywhere past 'START' it bogs down and dies. Any ideas?
