31/CARBURETOR
154
600398-10
–
Mount and tighten the choke slide and hot start slide
.
Specification
Choke slide
M12
2.5
Nm
(1.84
lbf
ft)
–
Position throttle valve sensor
. Mount screw
with the spring ring and washer
but do not tighten yet.
Info
When installing the throttle valve sensor, ensure that the flat area of the
inner clutch hub engages in the recess of the throttle valve sensor.
700047-11
–
Position the hose connection. Mount and tighten screw
.
Specification
Screw, hose connection
M4
2
Nm
(1.5
lbf
ft)
Loctite
®
243™
Info
The hose connection must be easy to turn when it is mounted.
700045-11
–
Screw in mixture control screw
together with the spring, washer and O-ring to
the stop.
Specification
Mixture control screw
M6x0.5
1
Nm (0.7
lbf
ft)
–
Unscrew mixture control screw
again by the number of turns that was noted
down earlier when it was disassembled or to the specified basic setting.
Specification
Idle mixture adjusting screw
Open
1.0
turn
Info
The mixture control screw may be open by no more than 2 turns. If more
than two turns are necessary (rich mixture), use a larger idling jet.
–
Position buffer plate
. Mount and tighten needle jet
, cold start jet
and
idling jet
.
Specification
Needle jet
M7x0.75
3.5
Nm
(2.58
lbf
ft)
Cold start jet
M5x0.75
2
Nm (1.5
lbf
ft)
Idling jet
M6x0.75
2
Nm (1.5
lbf
ft)
Cold start jet
(85)
(450 XC ATV)
Idling jet
(40)
(525 XC ATV)
Idling jet
(42)
700044-11
–
Mount and tighten main jet
.
Specification
Main jet
M5x0.75
2
Nm (1.5
lbf
ft)
Main jet
(170)
–
Position the float and float needle valve, and mount fulcrum pin
.
–
Check/adjust the float level. (