Suzuki VZ800 Service Manual page 251

6-16 FUEL SYSTEM AND THROTTLE BODY

* Do not loosen the nut 0.
* The fast idle screw A is factory-adjusted at the time
of delivery and therefore avoid removing or turning it
unless otherwise necessary.
* Do not turn the screw B.

Never remove the secondary throttle valve C and
throttle valve D.
• Remove the fuel delivery pipes E.