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15 TUNING THE ENGINE
15.5
15.6
102
Carburetor - idle (TC 50 Mini)
A00106-10
Carburetor – adjusting the idle speed
H00078-10
The idle speed is adjusted using the idle speed adjusting
1
screw
.
The idle mixture is adjusted with the idle mixture adjusting
2
screw
.
The idle setting of the carburetor has a big influence on the start-
ing behavior, stable idling, and the response to throttle opening.
This means that an engine with a correctly set idle speed is eas-
ier to start than if the idle speed is set wrongly.
Info
The carburetor and its components are subject to
increased wear caused by engine vibration. Wear can
result in malfunctioning.
The idle speed is adjusted using the idle speed adjusting
1
screw
.
The idle mixture is adjusted using the idle air adjusting screw
(TC 50)
–
Screw in idle adjusting screw
prescribed basic setting.
Guideline
Idle mixture adjusting screw
Open
–
Run the engine until warm.
Guideline
Warm-up time
–
Connect special tool.
Tachometer (45129075000)
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
Guideline
Choke function deactivated – The choke lever is pushed in
to the stop. (
p. 17)
Idle speed
2
2
until it stops and then to the
3 turns
≥ 5 min
1
1,400 ... 1,500 rpm
.
.
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