Where are my carb adjustment screws?

[bigmoe]

1965 johnson 18 hp fd-19

I took a good look at the carb last night and I dont see any air/fuel mixture screws. The only adjustment I see is the slow speed mixture knob on the front of the motor. Also where do I adjust my idle? Mine seems a little high. I have a manual ordered but havent recieved it yet.

 

[wilde1j]

Re: Where are my carb adjustment screws?

The high speed jet may be fixed.

 

[Vic.S]

Re: Where are my carb adjustment screws?

I has a slow speed mixture needle that is operated by the knob on the front.
See Joe Reeves' instructions on the Engine FAQs board for adjusting the needle valve.

It does not have a high speed mixture adjustment. It has a fixed jet.

The idle speed adjustment screw is #84 in This diagram

 

[bigmoe]

Re: Where are my carb adjustment screws?

I has a slow speed mixture needle that is operated by the knob on the front.
See Joe Reeves' instructions on the Engine FAQs board for adjusting the needle valve.

It does not have a high speed mixture adjustment. It has a fixed jet.

The idle speed adjustment screw is #84 in This diagram

Thank you very much.