Question about Husqvarna 28cc Gas Line Trimmer
This is happening due to adjustment of fuel supply in carburetor. You can adjust the fuel supply and air/fuel mixture as well. To adjust the fuel supply check the setting of the carburetor. Settings means that the engine is adapted to local conditions, for example, the climate, altitude, fuel and the type of 2-stroke oil. The carburetor has three adjustment controls:
L = Low speed jet
H = High speed jet
T = Idle adjustment screw
The L and H-jets are used to adjust the supply of fuel to match the rate that air is admitted, which is controlled with the throttle. If they are screwed clockwise the air/fuel ratio becomes leaner (less fuel) and if they are turned anti-clockwise the ratio becomes richer (more fuel). A lean mixture gives a higher engine speed and a rich mixture gives a lower engine speed.
The T-screw regulates the throttle setting at idle speed. If the T-screw is turned clockwise this gives a higher idle speed; turning it anti-clockwise gives a lower idle speed.
For more details please refer page# 27 in the following manual---
Husqvarna 335r Reference/Operations Manual
Hope this helps... If it does please do not forget to accept the solution or post back for assistance.
Posted on Aug 06, 2010
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Posted on Jan 02, 2017
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