So I have a 1978 25hp evinrude that I just bought from someone. First time taking it out on the water I immediately noticed that it will momentarily jump from forward to neutral then back to forward in a split second at higher rpms. It’s enough to jolt my small boat around and I’m sure it is creating a world of problems for other parts of the motor. I have taken the lower unit off before so that shifter linkage in there has been disconnected and put back together. I have had to adjust it so that it shifts back and forth clean, and as far as I can tell it’s put together correctly but I can’t replicate all the different torque and vibration that comes with running it wide open. Wondering if anyone knows what the issue might be? At this point I assume it’s something more than just that little linkage connector, but don’t have enough knowledge of the inter workings of the shifting mechanism in the lower unit. One last bit of info, if I forcefully held the actual shifter handle forward it seemed to do it a lot less.
