Throttle Body Cleaning; Inspection; Isc Valve Inspection - Suzuki Intruder VZR1800 Service Manual

THROTTLE BODY CLEANING

!
Some carburetor
dip-type soaking solutions, are very corrosive and
must be handled carefully. Always follow the chemical
manufacturer's instructions on proper use, handling
and storage.
• Clean passageways (except for main bore) with a spray-type
carburetor cleaner and blow dry with compressed air.
#
* Never clean the main bore of throttle body to prevent
come off molybdenum from the throttle valve.
* Do not use wire to clean passageways. Wire can
damage passageways. If the components cannot be
cleaned with a spray cleaner it may be necessary to
use a dip-type cleaning solution and allow them to
soak. Always follow the chemical manufacturer's
instructions for proper use and cleaning of the throt-
tle body components. Do not apply carburetor clean-
ing chemicals to the rubber and plastic materials.

INSPECTION

• Check following items for any damage or clogging.
* O-ring
* Throttle valve
* Secondary throttle valve
* Vacuum hose
* Delivery hose
* Injector dust seal

ISC VALVE INSPECTION

The ISC valve can be checked without removing it from the
throttle body.
*Refer to the ISC VALVE INSPECTION for details. ("5-70)
If the resistance is not within the standard range, replace the
ISC valve motor assembly with a new one.
cleaning chemicals, especially
FUEL SYSTEM AND THROTTLE BODY 6-17