Re: 1989 140 evinrude fuel pump conversion kit
I have a 1981 V4 140. Can you tell me more about fuel pumps and upgrade options? I currently seem to have a fuel pump from 1990+ on it. but only 1. I just ordered a repair kit for the gaskets etc. as one diaphragm had a hole in it and the main pump flexible piece seems stiff due to age. Engine keeps stalling at idle after a few minutes unless I kept pumping the primer sometimes stall when i hit the throttle, runs fine with a more open throttle.
Should I have 2 pumps, where would it be installed to get compression off the engine?? What about electric assist pumps near the tank? Worth the effort?
I'm hoping fixing the damaged diaphragm fixes my issue, but am curious about other options.