Engine Idle Speed; Throttle Cable Play; Carburetor Synchronization - Suzuki GSX1200 1999 Service Manual

2-10 PERIODIC MAINTENANCE

ENGINE IDLE SPEED

Inspect Initially at 1 000 km (1 month) and Every 6 000 km
(6 months) thereafter.
NOTE:
Make this adjustment when the engine is hot.
• Connect a tachometer.
• Start up the engine and set its speed at anywhere between
1 100 and 1 300 r/min. by turning throttle stop screw.
% Engine idle speed: 1 200 ± 100 r/min. % %
% %

THROTTLE CABLE PLAY

Inspect Initially at 1 000 km (1 month) and Every 6 000 km
(6 months) thereafter.
Adjust the throttle cable play A with the following three steps.
First step:
• Loosen the lock nut 3 of the throttle returning cable 1 and turn
in the adjuster 4 fully into the threads.
Second step:
• Loosen the lock nut 5 of the throttle pulling cable 2.
• Turn the adjuster 6 in or out until the throttle cable play A should
be 2.0 – 4.0 mm at the throttle grip.
• Tighten the lock nut 5 while holding the adjuster 6.
Third step:
• While holding the throttle grip at the fully closed position, slowly
turn out the adjuster 4 of the throttle returning cable 1 to feel
resistance.
• Tighten the lock nut 3 while holding the adjuster 4.
% %
% % % Throttle cable play A: 2.0 – 4.0 mm
*
After the adjustment is completed, check that handlebar
movement does not raise the engine idle speed and that
the throttle grip returns smoothly and automatically.
NOTE:
Major adjustment can be made by the carburetor side adjuster.
( $ 4-21)

CARBURETOR SYNCHRONIZATION

Inspect Every 12 000 km (12 months).
($4-22)