Honda CRF450X 2005 Service Manual page 131

l
l
A~nor
ron/aminated
floa t
valve will not seat
properly and will
e\l8ntually flood the
carburetor.
Damage to the pilot
screw saar will
occur" rhe PliOt
screw
IS
tightened
agamst the sear
Check the float valve and valve seat for scoring,
scratches, clogs or damage.
Check the tip of the float valve where it contacts the
valve seat, for stepped wear or contamination .
Check the valve seat for wear or damage.
Clean or replace them jf necessary.
Remove the following :
- Main jet
- Needle jet
- Baffle plate
- Starter jet
- Slow jet
Before rem oving the pilot screw, turn it in, counting
the number of turns until it seats tightly so you can
return the pilot screw to its original position when
reassembling .
Remove the pilot screw, spring , washer and O-ring.
'05 - '07:
Remove the slow ai r jet.
Remove the acc. pump bypass from the float cham-
ber.
Blow open the acc. pump bypass and fuel passage
with compressed air.
Check the acc. pump bypass for clogs or damage.
FUEL SYSTEM
-
BAFFLE PLATE
PILOT SCREW
6-17