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There are three adjustments to the carbureter of the stihl wipper snipper model F585AV. One being the idle adjustment. one of the other two is the mixture adjustment. Question is, which is the mixture adjustment and what is the other. regards the troubled mechanic

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Low idle speed is one and high speed screw is the other. The idle screw is usually the one located closest to the throttle plate (closer to engine)

Posted on Feb 08, 2010

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Could some help me with factory carb settings on this saw

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Dec 04, 2015 | Garden

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Repair manual

Hi Robert:
Before you remove or try to adjust your low and high speed jets you should always count the number of turns it takes to lightly seat the idle mixture screw and high speed needle adjusting screws.
Be sure to write the number of turns down on a piece of paper so you will know how many turns from the seated position to open the jets when you go to reinstall them, or if you remove them for cleaning or replacement.
If you have aready tried to adjust them then the adjustments below should get it running for you for final adjustment when warm.
Normally you will adjust your idle jet to 1/2-3/4 turn open from the bottom seated position.
Then you will re-adjust the low speed of the engine when the engine is warm by turning the idle screw in or out till the engine runs smoothly at idle speed, around 1200 RPM.
The high speed jet is adjusted to 1 1/2- 1 3/4 open from the bottom seated position, after the engine is warm.
Then re-adjusted by turning the High Speed jet adjustment screw in or out till the motor runs smoothly at high speed.
Alway use the "lightly seated" method if you have not changed the screw settings.

Oct 03, 2013 | whipper snipper stihl fs 38

1 Answer

I Have a stihl fs 38 wipper snipper. I am having trouble setting the carb jets. Can you help me?

Even touching carb jets is the very last resort, if u absolutely have too, turn them closed, b mindful do NOT over turn. Turn jet 1/4 turn and if needed 2nd 1/4 turn. no more than 1/2 turn.

Sep 02, 2011 | Garden

1 Answer

My stil wipper snipper starts and runs but only on low will not rev up

Most Stihl's are the same...Sounds like you need to adjust your mixture screws on the carby. you will need a small flat blade screwdriver (usually these are supplied with the wipper snipper from new and they have a little arrow on the top), H is for the High speed mixture screw, L is for the Low speed mixture screw. Turn the screws clockwise in until they seat (do NOT tighten!!) then turn them anti-clockwise the recommended amounts of turn on the cover around the holes. Careful not to lean the mixture out too much, but if it is the newer type they have a restictor on the High Speed that stops it at 3/4 of a turn. start it up and hopefully it will fix your problem, if not you will have to take it to a professional. Further info majority of STIHL high and low mixture setting are fine tuned via the respective rev settings , you'll have find out the particular setting from your STIHL dealer(sorry)

Nov 21, 2010 | Garden

1 Answer

Stihl 210C Chainsaw. Will not idle. what are three adjust holes on the side,which adjust idle and mixture?


As per previous solution - owners manual located at

details carb adjustments page 46-48

If this helps please leave feedback

Feb 07, 2010 | Garden

1 Answer

Stihl 210C Chainsaw. Will not idle. what are three adjust holes on the side,which adjust idle and mixture?


The owners handbook located at

has complete details on how to adjust the carb (see page 46-48)

If this helps please leave feedback

Feb 07, 2010 | Standard Oregon Chainsaw Chain For Stihl...

1 Answer

I have a Mcculloch Model Mac 3227 whipper snipper. I am wandering how to tune is so it does not over rev when on idil.

There should be a "HI" and a "LOW" setting. There should also be an adjustment for the idle speed. Each would have a screwdriver head on it . Look closely. You would adjust the idle setting, not either marked H or L...Lee

Sep 17, 2009 | Garden

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