Carburetor Synchronization - Suzuki GSF1200S 2001 Service Manual

4-24 FUEL SYSTEM
THROTTLE CABLE ADJUSTMENT (MAJOR ADJUSTMENT)
NOTE:
Minor adjustment can be made by the throttle grip side adjuster.
( ! 2-11)
• Remove the fuel tank. (!4-3)
• Loosen the lock nut 1 of the throttle returning cable.
• Turn the returning cable adjuster 2 to obtain proper cable play.
• Loosen the lock nut 3 of the throttle pulling cable.
• Turn the pulling cable adjuster 4 in or out until the throttle cable
play A of 2.0 – 4.0 mm (0.08 – 0.16 in) at the throttle grip is
obtained.
• Tighten the lock nut 3 securely while holding the adjuster 4.
• While holding the throttle grip at the fully closed position, slowly
turn the returning cable adjuster 2 to obtain a cable slack B of
1.0 mm (0.04 in).
• Tighten the lock nut 1 securely.
• After all of the work has been completed, install the carburetor
assembly onto the engine and perform the following adjust-
ments.
* Engine idle speed ................................................. !2-11
* Throttle cable play ................................................. !2-11

* Carburetor synchronization ................................... !4-24

CARBURETOR SYNCHRONIZATION
Check and adjust the carburetor synchronization among the four
carburetors as follows.
NOTE:
Remove the fuel tank and connect a remote fuel bottle to the fuel
hose.
CALIBRATING THE CARBURETOR BALANCER
• Disconnect the vacuum hose 1 (for fuel valve and PAIR valve)
from carburetor #4, and install a cap of the proper size to the
#4 carburetor's vacuum inlet.
• Start the engine and let it run at idle until it is warmed up.
• Stop the engine.