Publicidad
Idiomas disponibles
Idiomas disponibles
English
Erratic idling behavior, poor
acceleration
Carry out standard setting on low
N
speed screw (L).
Idle setting is too lean: Turn the low
N
speed screw (L) 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 engine does not run
satisfactorily:
Check the standard setting.
N
Warm up the engine.
N
Turn high speed screw (H) slightly
N
clockwise (leaner) – no further than
stop.
If the setting is too lean there is a
risk of engine damage due to
insufficient lubrication and
overheating.
38
Spark Arresting Screen in
Muffler
In some countries the muffler is
equipped with a spark arresting screen.
If the engine is down on power,
N
check the spark arresting screen in
the muffler.
Wait for the muffler to cool down.
N
Remove the sprocket cover.
N
Take out the screw (1).
N
Remove the baffle plate (2).
N
Remove the spark arresting
N
screen (3).
Clean the spark arresting screen. If
N
the screen is damaged or heavily
carbonized, fit a new one.
Refit the spark arresting screen.
N
Fit the baffle plate.
N
Checking the Spark Plug
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 result in trouble in operation.
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
Remove spark plug – see "Starting /
N
Stopping the Engine".
Clean dirty spark plug.
N
Check electrode gap (A) and
N
readjust if necessary – see
"Specifications".
Use only resistor type spark plugs of
N
the approved range.
MS 192 C
Publicidad
