Yamaha YZ450F, Owner'S Service Manual

Page: 274 / 650

4 - 17
ENG
CARBURETOR
8. Install:
• Throttle shaft assembly
1
• Plain washer (metal)
2
• Plain washer (resin)
3
• Valve lever
4
NOTE:
• Apply the fluorochemical grease on the bear-
ings.
• Fit the projection
a
on the throttle shaft
assembly into the slot
b
in the TPS (throttle
position sensor).
• Make sure the stopper
c
of the spring fits
into the recess in the carburetor.
• Turn the throttle shaft assembly left while
holding down the lever 1
5
and fit the throt-
tle stop screw tip
d
to the stopper
e
of the
throttle shaft assembly pulley.
1 2 3
4
b
a
c
e
d
5
9. Install:
• Push rod
1
NOTE:
While holding down the lever 1
2
, insert the
push rod farthest into the carburetor.
1
2
10. Install:
• Starter jet
1
• Pilot jet
2
• Spacer
3
• Needle jet
4
• Main jet
5