Suzuki GSX-R1000K5 - Throttle Valve Synchronization

5-26 FUEL SYSTEM AND THROTTLE BODY
THROTTLE VALVE SYNCHRONIZATION
Check and adjust the throttle valve synchronization among four
cylinders.
USE OF DIGITAL VACUUM TESTER
Step 1
• Lift and support the fuel tank. (5-3)
•
Start up the engine and run it in idling condition for warming up .
• Stop the warmed-up engine.
• Disconnect the IAP sensor coupler 1 and remove the IAP
sensor from the air cleaner box.
• Disconnect the vacuum hose 2 from each throttle body.
• Connect the vacuum tester hose 3 to each vacuum nipple on
the throttle body.
Step 2
• Remove the air cleaner box. (5-13)
• Connect a tachometer and start up the engine.
• Bring the engine rpm to 1 150 r/min by the throttle stop screw.
• Check the vacuum of the four cylinders and balance the four
throttle valves with the balance screw 4.

NOTE:
* During balancing the throttle valves, always set the engine
rpm at 1 150 r/min, using throttle stop screw.
* After balancing the four valves, set the idle rpm to 1 150 r/min
by the throttle stop screw.
* If the above procedures cannot still synchronize the valves,
proceed to the next step.
Avoid dirt drawn into the throttle body while running
the engine without air cleaner box cover. Dirt drawn
into the engine will damage the internal engine parts.
SAMPLE