Spark Plug - Stihl BT 45 Manual De Instrucciones

English
Adjusting Idle Speed
Carry out the standard setting.
N
Set rotary knob to N (gearbox in
N
neutral).
Start and warm up the engine.
N
Move the rotary knob to 1.
N
LA
L
Adjust idle speed with the idle speed
N
screw (LA) so that the drilling
spindle does not rotate.
Engine stops while idling
Turn the idle speed screw (LA)
N
slowly clockwise until the engine
runs smoothly – the drilling spindle
must not rotate.
Drilling spindle rotates when engine is
idling
Turn the idle speed screw (LA)
N
counterclockwise until the drilling
spindle stops rotating and then turn
the screw another 1/2 to 1 turn in
the same direction.
WARNING
If the drilling spindle continues rotating
when the engine is idling, have your
power drill checked and repaired by your
servicing dealer.
24
Erratic idling behavior, poor acceleration
(even though standard setting of low
speed screw is correct)
Idle setting is too lean
Turn the low speed screw (L) slowly
N
counterclockwise until the engine
runs and accelerates smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA) after
every correction to the low speed
screw (L).
Fine Tuning for Operation at High
Altitude
A slight correction of the setting may be
necessary if the engine does not run
satisfactorily:
Carry out the standard setting.
N
Set rotary knob to N (gearbox in
N
neutral).
Warm up the engine.
N
Turn high speed screw (H) slightly
N
clockwise (leaner) – no further than
stop.
NOTICE
After returning from high altitude, reset
the carburetor to the standard setting.
If the setting is too lean there is a risk of
engine damage due to insufficient
lubrication and overheating.

Spark Plug

If there is a loss of engine power, the
machine is difficult to start or runs poorly
at idle, first check the spark plug.
Install a new spark plug after approx.
100 operating hours or earlier if the
electrodes are eroded/corroded.
The wrong fuel mix (too much engine oil
in the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose,
which may degrade performance.
Removing the Spark Plug
Move the stop switch to 0.
N
6
Remove the spark plug boot (6).
N
Unscrew the spark plug.
N
BT 45