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5. FUEL SYSTEM AGILITY 125
PILOT SCREW ADJUSTMENT
* ADJUSTMENT
· The pilot screw is factory pre-set and
no adjustment is necessary. During
carburetor disassembly, note the
number of turns of the pilot screw and
use as a reference when reinstalling it.
· Place the motorcycle on its main stand
on level ground for this operation.
Pilot Screw
A tachometer must be used when adjusting
the engine speed.
Turn the pilot screw clockwise until it seats
lightly and back it out to the specification
given.
Standard Opening: 31/2 turns
· The carburetor must be adjusted when
the engine is warm and the auto
bystarter is closed.
· Do not force the pilot screw against its
seat to prevent damage.
Warm up the engine and adjust the throttle
stop screw to obtain the specified idle
speed. Throttle Stop Screw
Idle Speed: 1900100rpm
Turn the pilot screw in or out slowly to
obtain the highest engine speed.
Slightly accelerate several times to make
sure that the idle speed is within the
specified range.
If the engine misses or runs erratic, repeat
the above steps.
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