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Fine tuning
• Mount the cutting tool.
Machines with cutting head:
• Trim line to correct length:
Lines must extend as far as line
limiting blade on the deflector
• Carry out the basic setting.
• Warm up engine by running
it
for
about 1 minute at full throttle and
then return
to
idle speed.
• Back off high speed adjusting screw
(H) one half turn (counterclockwise).
• Run engine at full throttle and rotate
high speed adjusting screw
(H)
carefully clockwise until you hear
38
no further increase
in
RPM -
back off screw one eighth turn.
Machines with metal cutting tool:
A tachometer is necessary for the
following adjustment.
If
no tachometer
is
available,
.....,.
do not turn screws beyond the basic
setting.
• Carry out the basic setting.
• Warm up engine by running
it
for
about 1 minute at full throttle and
then return to idle speed.
• Back off high speed adjusting screw
(H) one half turn (counterclockwise).
• Run engine at full throttle and
rotate high speed adjusting screw
(H) carefully clockwise until
maximum permissible speed of
12,000 RPM
is
reached.
Turning the screw
(H) any further
in the clockwise direction will
make the fuel-air mixture too
lean -
this could damage the engine!
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