HYOSUNG TE 450 Service Manual page 111

● Remove the main jet ① , jet holder ②
③ .
● Remove the pilot air jet ④
the number of turn.
NOTE
Before removing the pilot air jet ④ ④ , its setting
must be determined. Slowly turn the pilot screw
clockwise and count the number of turns until it
is lightly seated. Make a note of how many turns
were made. When reassembling the pilot screw,
you will want to set it to its original position.
◉ ◉ INSPECTION
Check the following parts for damage and clogging.
�Pilot jet
�Main jet
�Main air jet
�Pilot air jet
�Needle jet holder
�Needle valve
�Valve seat
If any abnormal condition is found, wash the part clean.
If damage or clogging is found, replace the part with
a new one.
◉ ◉ CLEANING
● Clean all jets by using compressed air.
● After cleaning, reassemble the carburetor with
new seals and gaskets.
CAUTION
Do not use wire to clean the passageways, valve
seat and jets. Used compressed air only.
and pilot jet
counting and tightening
�Piston valve
�Starter jet
�Gaskets and O-rings
�Pilot outlet and bypass
�Float
�Jet needle
�Diaphragm
FUEL SYSTEM 4-8
Check for
stopped
wear
Needle valve
① , ②
③
④
Foreign
substance