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How to adjust husqvarna 254 carburetor?

The question is how should be adjusted the carburetor?

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Posted on Jan 02, 2017

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SOURCE: Carburetor problem

Hi

High speed H=3\4 turn

Low speedL=1 1/4 turn

idle speed t adjust accordingly.

regards savumihai71

Posted on Dec 14, 2008

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SOURCE: husqvarna chainsaw carburetor adjustment

Find the 2 screws. There will be a (h) high and (L) low. These are for hig rpms and low rpms. First tighten the screws. Then unscrew them about 1-1/4 turns. Then start the saw and let it warm up. Start with the high rpms first pull the trigger all the way then adjust the screw in 1/8 turns either way until it is running good at high rpms. Then work on the L rpms. Get the saw to idle then pull the trigger, there should not be any hesitation when going from L to H rpms. Just adjust the low same as the High. They have to work together so if the high is good and the low is not just right turn the h a small amount. If you have any more questions let me know

Posted on Jun 20, 2009

  • 243 Answers

SOURCE: I have a Husqvarna 455 rancher I have been trying

husqs are sensitif for dirt in carb and fuelsystem clean everything real good. airfilter, carb, tankfilter. after building together make sure it can not take false air. start with both screws closed and open for 360 degrees. after that start adjusting. compression must be ok. saw must hang on cord and not go down. good luck lot of work.

Posted on Feb 11, 2010

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CAUSE CORRECTION
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1 Answer

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Husqvarna chainsaw carburetor adjustment


Find the 2 screws. There will be a (h) high and (L) low. These are for hig rpms and low rpms. First tighten the screws. Then unscrew them about 1-1/4 turns. Then start the saw and let it warm up. Start with the high rpms first pull the trigger all the way then adjust the screw in 1/8 turns either way until it is running good at high rpms. Then work on the L rpms. Get the saw to idle then pull the trigger, there should not be any hesitation when going from L to H rpms. Just adjust the low same as the High. They have to work together so if the high is good and the low is not just right turn the h a small amount. If you have any more questions let me know

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1 Answer

Carburetor problem


Hi

High speed H=3\4 turn

Low speedL=1 1/4 turn

idle speed t adjust accordingly.

regards savumihai71

Dec 14, 2008 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

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