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12. CARBURETOR SUPER 9 50
CARBURETOR INSTALLATION O-rings
When installation, do not allow foreign
particles to enter the carburetor.
Check the carburetor insulator and O-ring
for wear or damage.
Install the carburetor and insulator onto the
intake manifold and tighten the two lock
nuts.
Connect the fuel tube and auto bystarter
wire connector.
Route the auto bystarter wire correctly
and properly.
Install the carburetor cap. ( 12-4) Insulator
Install the air cleaner onto the carburetor
and tighten the band screw. Carburetor Cap Band
Install the met-in box. ( 2-3)
AIR SCREW ADJUSTMENT
Remove the met-in box. ( 2-3)
Warm up the engine before air screw
adjustment.
Turn the air screw clockwise until it seats
lightly and back it to the specification
given.
Air Screw Opening:
SH10DA: 1 turns
Start the engine and turn the air screw in or Fuel Tube
out slowly to obtain the highest engine
speed. Air Screw
Do not force the air screw against its
seat to prevent damage.
Turn the throttle stop screw to obtain the
specified idle speed.
Idle Speed:
SH10DA: 2000100rpm
Slightly increase the engine speed and
make sure that the engine does not miss or
run erratic.
If the adjustment of the air screw within the
range of turn makes no difference to the
engine performance, check other related
items. Throttle Stop Screw
12-10