Idle adjustment on a Sportster 25Hp 1970???????

[Outboardmaniac]

How can i make the idle higher on my Evinrude 25Hp from 1970.Is there a special screw for the adjustment?
I cant find anyone,Please advice.

 

[OBJ]

Re: Idle adjustment on a Sportster 25Hp 1970???????

If you would follow the tiller handle back to about mid ways on the lower pan, you should see a screw with a spring right next to the throttle control gear. This screw can be run in to keep the idle up.

But let's talk about that before we turns screws. Is it stalling out at idle or when put in gear? Do you know the rpms at idle? The link and sync good and idle speed needle set correctly?

Sometimes poor idle can be hiding a problem that even though over rided by the higher idle rpm, the problem would still be there and possibly cause more serious damage down the road.

Can you give us some history on the engine...what it's doing?

 

[Outboardmaniac]

Re: Idle adjustment on a Sportster 25Hp 1970???????

Its very difficult to keep the engine running at idle.It is stopping all the time,

 

[Outboardmaniac]

Re: Idle adjustment on a Sportster 25Hp 1970???????

But if i start it, and very quickly put it in gear and throttle it up,The engine is running very well and correct.

 

[OBJ]

Re: Idle adjustment on a Sportster 25Hp 1970???????

You might want to check the throttle cam roller pick up point and readjust the low speed needle. Knowing the rpms would help. Can you get a timing light with a tach function and check the rpm? Might be all you need to do.

 

[Outboardmaniac]

Re: Idle adjustment on a Sportster 25Hp 1970???????

I will do so,

 

[tashasdaddy]

Re: Idle adjustment on a Sportster 25Hp 1970???????

search out joe reeves idle setting procedure, it;s great.

 

[OBJ]

Re: Idle adjustment on a Sportster 25Hp 1970???????

It's now in the FAQ's tashasdaddy.....d