Honda WT30XK4 Manual page 52

FLOAT VALVE
Check the float valve (1) and its seat (2) for wear or
contamination.
Before installation, check for wear or a weak spring (3).
Check the operation of the float valve.
PILOT SCREW REPLACEMENT
Only remove the pilot screw (1) and limiter cap (2) when
necessary for repair or to clean stubborn deposits from
the pilot circuit passages.
Removal of the limiter cap requires breaking the pilot
screw. A new pilot screw and limiter cap must be
installed.
Tampering is a violation of Federal and California law.
When the limiter cap has been broken off, remove the
broken pilot screw.
Place the spring on the replacement pilot screw, and
install it on the carburetor.
Turn the pilot screw in until it is lightly seated, and then
turn the screw out the required number of turns.
PILOT SCREW OPENING:
WT30XK4:
WT40XK3:
Refer to the table above for carburetor pilot screw initial
opening setting.
Apply Hondalock 2, LOCTITE® 638, or equivalent to the
inside of the limiter cap, and then install the cap so the
stop prevents the pilot screw from being turned
counterclockwise.
Be careful to avoid turning the pilot screw while
installing the limiter cap. The pilot screw must stay at its
required setting.
2 turns out
2 - 1/8 turns out
CARBURETOR BODY
(1)
(2)
(3)
OK CLEAN REPLACE
Pilot screw will break at narrow point.
(2)
STOP
(2)
FUEL SYSTEM
(1)
(1)
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