Cleaning; Inspection; Installation - HYOSUNG 2010 ST7 Service Manual

CLEANING

● Clean all passageways with a spray-type throttle
body cleaner and blow dry with compressed air.
WARNING
Some throttle body cleaning chemicals, especial-
ly 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.
CAUTION
Do not use wire to clean passageways. Wire can
damage passageways. If the components cannot
be cleaned with a spray cleaner it may be neces-
sary to use a dip-type cleaning solution and allow
them to soak. Always follow the chemical manu-
facturer's instructions for proper use and clean-
ing of the throttle body components. Do not apply
throttle body cleaning chemicals to the rubber
and plastic materials.

INSPECTION

● Check following items for any damage or clogging.
* O-ring
* Injector cushion seal
* Throttle valve
* Intake pipe
* Throttle shaft bushing and seal
Check fuel injector filter for evidence of dirt and con-
tamination. If present, clean and check for presence
of dirt in the fuel lines and fuel tank.

INSTALLATION

Installation is in the reverse order of removal.
Pay attention to the following points :
CAUTION
Never operate the idle screw ① ① to avoid varia-
tions of the carburetion setting.
● Connect the throttle cable to the throttle cable
drum.
● Adjust the throttle cable play with the cable
adjusters.
* Throttle body
* Fuel injector
* Vacuum hose
FUEL SYSTEM AND THROTTLE BODY 5-8
①