2. Make sure that the muffler is correctly attached to
the product.
3. If your product has a special spark arrestor mesh,
clean the spark arrestor mesh weekly.
4. Replace a damaged spark arrestor mesh.
CAUTION:
If the spark arrestor mesh is
blocked the product becomes too hot and
this causes damage to the cylinder and
piston.
Carburetor without adjustment
limitations
Note:
If you do not know which carburetor type that
you have on your product, speak to your servicing
dealer.
Basic adjustments and run-in
The basic carburetor adjustments are done at the
factory. The basic adjustments are high speed needle
(H) = 1 turn and low speed needle (L) = 1 turn.
To give the components of the engine sufficient
lubrication during run-in, adjust the idle speed. Adjust
the idle speed to 600-700 rpm below the recommended
maximum idle speed.
CAUTION:
If the saw chain rotates at
idle speed, turn the idle speed screw
counterclockwise until the saw chain stops.
To adjust the low speed needle (L)
1. Turn the low speed needle clockwise and
counterclockwise to find the highest idle speed.
2. Turn the low speed needle (L) ¼ turn
counterclockwise from the position of the highest idle
speed.
To adjust the idle speed screw (T)
1. Start the product.
2. Turn the idle speed screw clockwise until the saw
chain starts to rotate.
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964 - 003 - 20.02.2021
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