1979 johnson 25 hp shift lock

[changetires]

I have a tiller steer electric start of this model and was wondering if there is supposed to be a shifter lock for forward gear when you engage. I bought this motor used and it looks and acts like it needs one. It has a tendency to shift to neutral when under a load.

Thanks,

Ed

 

[boobie]

Re: 1979 johnson 25 hp shift lock

Go to shop.evinrude.com and look up your mtr. They have good parts break downs.

 

[changetires]

Re: 1979 johnson 25 hp shift lock

When engine is cold it will shift from forward to neutral until it warms up a little ...like a half mile of idling along... after that you can go to WOT with no problem. If you physically hold the shifter lever it will stay in gear but this is a real pain.. anyone have any ideas? tks

 

[F_R]

Re: 1979 johnson 25 hp shift lock

There are two detents that are supposed to hold the shifter in gear. One is the notched bar that the shifter rides in, and the other is a set of balls and spring in the prop shaft, inside the gearcase. Your motor has a totally worn out clutch dog and probably forward gear. I say totally, because it is overpowering both detents. Both parts are in the gearcase.

For you to decide, but that might be why the previous owner unloaded it. The parts are extremely expensive.

 

[changetires]

Re: 1979 johnson 25 hp shift lock

It doesn't jump out at WOT only when cold....could it still be worn out?....when you say expensive ....could you give me a ballpark figure?

tks

 

[F_R]

Re: 1979 johnson 25 hp shift lock

The temperature part baffles me. I can't make sense out of that part. Anyhoo, 325013 clutch dog is $134.97, 389469 forward gear is $264.14. Add a seal kit, oil and labor (if you have a dealer do it), and you are talking $600 - $700