Husqvarna TC 50, Owner'S Manual, Page: 105 / 137

15 TUNING THE ENGINE
103
–
Turn idle mixture control screw 2 slowly clockwise until the
idle speed begins to fall.
–
Note the position and turn the idle adjusting screw slowly
counterclockwise until the idle speed falls again.
–
Adjust to the point between these two positions with the
highest idle speed.
Info
If there is a big engine speed rise, reduce the idle
speed to a normal level and repeat the above steps.
If the procedure described here does not lead to sat-
isfactory results, the cause may be a wrongly dimen-
sioned idling jet.
If you can turn the idle adjusting screw to the end
without any change of engine speed, you have to fit
a smaller idling jet.
After changing the idling jet, start from the beginning
with the adjusting steps.
Following extreme air temperature or altitude changes,
adjust the idle speed again.
15.7 Carburetor
–
adjusting the idle speed (TC 50 Mini)
A00106-10
–
Screw in idle air adjusting screw
2
all the way and turn it to
the specified basic position.
Guideline
Idle air adjusting screw
Open 1 turn
–
Run the engine until warm.
Guideline
Warm-up time
≥
5 min
Danger
Danger of poisoning
Exhaust gases are toxic and
inhaling them may result in unconsciousness and
death.
–
Always make sure there is sufficient ventilation
when running the engine.
–
Use an effective exhaust extraction system when
starting or running the engine in an enclosed
space.
–
Adjust the idle speed using idle speed adjusting screw
1
.
Guideline
Choke function deactivated
–
The choke lever is pushed
down all the way to the stop. ( p. 18)
Idle speed 1,400 … 1,500 rpm