E65WMLA (1991) slow speed needle is absent on corburetor

[vjdi]

There is no slow speed needle on carburetor of my motor, is it possible?
How can I adjust carburetor in such case?

Thanks in advance for any response.

 

[vjdi]

Re: E65WMLA (1991) slow speed needle is absent on corburetor

No answer as yet. Maybe my English is not good enough. Sorry, I'm a foreigner.
Hope attached picture will help to clarify what was my question about.

The main question is How to adjust idle speed if there is no slow speed needle at all?
I have bought original service manual but there is carburetor with that needle

 

[vjdi]

Re: E65WMLA (1991) slow speed needle is absent on corburetor

Actual view. No threat hole, no screw.

 

[wilde1j]

Re: E65WMLA (1991) slow speed needle is absent on corburetor

Most motors since the mid 70's only have fixed jets ... no adjustment for mixture at all.

 

[vjdi]

Re: E65WMLA (1991) slow speed needle is absent on corburetor

Most motors since the mid 70's only have fixed jets ... no adjustment for mixture at all.

And no single word about it in Service manual....

Still confused: How can I adjust the idle speed? In fact I can play with idle set screw in red oval, is it correct?

In attachment the picture from jtexas in topic http://forums.iboats.com/showthread.php?t=500879 Everything clear but screws in blue oval those are missing on my motor.

 

[wilde1j]

Re: E65WMLA (1991) slow speed needle is absent on corburetor

Idle speed and idle mixture are two entirely different things. If you have an OEM shop manual, it will surely tell you how to adjust the idle speed. Try the 'idle set screw' if your motor is similar to the picture.

 

[vjdi]

Re: E65WMLA (1991) slow speed needle is absent on corburetor

Idle speed and idle mixture are two entirely different things. If you have an OEM shop manual, it will surely tell you how to adjust the idle speed. Try the 'idle set screw' if your motor is similar to the picture.

Yes, I did as you write, idle speed on water is ok, however the run in idle is not so smooth as I expected. Therefore I thought to play with each carb individually.
But, maybe it is normal for 2-strocks such rough slow speed...