Carburetor Installation; Air Screw Adjustment - KYMCO DINK50 Service Manual

12
. CARBURETOR/FUEL PUMP

CARBURETOR INSTALLATION

＊
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)
Install the air cleaner onto the carburetor
and tighten the band screw.
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:
SH10BA: 1 _ _ turns
±
SH10AA: 1 _ _ turns
±
Start the engine and turn the air screw in or
out slowly to obtain the highest engine
speed.
＊
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:
SH10BA: 2000±100rpm
SH10AA: 2000±100rpm
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.
12-11
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Carburetor Cap
Band
Fuel Tube
Air Screw
Throttle Stop Screw
O-rings
Insulator