how to adjust idle speed?

[steelheadsam]

1988 johnson 48hp spl, i just replace crank seal yesterday and motor is running good but i need to bring the idle speed up a little bit and i returned the manual to the library, wich screw do i turn to do this?

 

[EN2]

Re: how to adjust idle speed?

On the stbd. side of the power head there is a bell crank, on this part towards the top of the bell crank ther is a screw, just below a short link, this your idle speed adjustment.

 

[steelheadsam]

Re: how to adjust idle speed?

so its not the shaft that has the thumbwheel and lock nut?

On the stbd. side of the power head there is a bell crank, on this part towards the top of the bell crank ther is a screw, just below a short link, this your idle speed adjustment.

 

[EN2]

Re: how to adjust idle speed?

No it is not the thumb wheel. Towards the rear there is a slotted head screw. Is this a remote or tiller? If tiller the screw slot is to the rear. Remote the screw slot faces the front. O n the shaft where the thunbwheel is, look at the opposite end of it where it connects to the bell crank, just up from it's connection point on the bell crank will be the idle adjust screw.

 

[steelheadsam]

Re: how to adjust idle speed?

aw i see it now thanks a bunch i thought that screw just advanced timing

No it is not the thumb wheel. Towards the rear there is a slotted head screw. Is this a remote or tiller? If tiller the screw slot is to the rear. Remote the screw slot faces the front. O n the shaft where the thunbwheel is, look at the opposite end of it where it connects to the bell crank, just up from it's connection point on the bell crank will be the idle adjust screw.

 

[EN2]

Re: how to adjust idle speed?

It will advance the timing, that is how your idle speed is increased or decreased. Screw it in timing will advance, idle will go up.