I rebuilt the card on my 1981 25 HP johnson about 1 month ago. After a little tweeking the outboard ran great for about 6 hours (3 -4 trips). I took the boat out last weekend and the motor sounded very rough. No longer was there the nice consistant purr of the johnson but a much deeper rougher sound (but not quite skipping). Thinking that this was again a carb problem I took the carb apart today.
I drill small holes in the jet plugs to remove them. I drilled all three and began prying them out with a nail when I noticed one of the smaller plugs on the side of the carb fell out. Was this plug loose? Is a loose plug a possible reason why the motor ran poorly or do I have a problem outside of the carb. Please advise. If the plug is the problem how do you properly set them. They are cup shaped. Does the cup face out or in?
I drill small holes in the jet plugs to remove them. I drilled all three and began prying them out with a nail when I noticed one of the smaller plugs on the side of the carb fell out. Was this plug loose? Is a loose plug a possible reason why the motor ran poorly or do I have a problem outside of the carb. Please advise. If the plug is the problem how do you properly set them. They are cup shaped. Does the cup face out or in?
