Throttle Valve Synchronization - Suzuki DL650K5 Service Manual

5-32 FUEL SYSTEM AND THROTTLE BODY

THROTTLE VALVE SYNCHRONIZATION

Check and adjust the throttle valve synchronization between two
cylinders.
CALIBRATING EACH GAUGE (For vacuum balancer gauge)
• Start up the engine and run it in idling condition for warming
up.
• Stop the warmed-up engine.
• Remove the fuel tank. (!5-7)
• Remove the air cleaner box. (!5-15)
• Install the fuel tank.
• Connect the IAT and PAIR control valve sensor couplers.
• Connect the IAP sensor coupler and vacuum hose.
• Connect the PAIR hose.
• Remove the rubber cap 1 from the No.1 throttle body.
• Connect one of the four rubber hoses of the vacuum balancer
gauge to the nipple on the No.1 throttle body.
$ 09913-13121: Vacuum balancer gauge
• Start up the engine and keep it running at 1 300 rpm by turn-
ing throttle stop screw 3.
"
Avoid drawing dirt into the throttle body while running
the engine without air cleaner box. Dirt drawn into the
engine will damage the internal engine parts.