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I have a husqvarna 125b gas blower and it came missing its manual. Can you explain the high and low speed idle controls : which is which and what is used to adjust them Thanks

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A special tool is required to adjust the carb screws, it should be set up from the factory for the best emmissions, so there should be no need for you to adjust them, however the L screw controls the low speed and acceleration up to half throttle, the H screw controls the max rpm, the the third screw just controls the idle speed, if you need the tool it is part no. 530035560, both screws are fuel, not air screws, screw the L screw in until you get the highest revs, then back it out 1/4 turn, screw the H screw in for the highest rpm, now back off 1/4 turn. if the machine does not pick up smooth increse the L screw bit at a time until it does, if the full revs sound too rich, screw the H screw in a very tiny bit.

Posted on Mar 31, 2011


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