KTM 300 EXC, Repair Manual

Page: 194 / 289

19 CARBURETOR
192
19.11 Checking the float needle valve
Condition
The float needle valve has been removed.
700057-10
–
Check the float needle valve including the valve seat for deposits.
» If there are deposits:
–
Clean the valve seat. Clean or change the float needle valve.
–
Check the float needle valve for wear and the sealing area for notches.
» If the sealing area is damaged or worn:
–
Change the float needle valve.
19.12 Assembling the carburetor
303360-11
–
Mount and tighten choke slide
1
.
Guideline
Choke slide M10 5 Nm (3.7 lbf ft)
303359-11
Alternative 1
–
Mount idle air adjusting screw
2
with the spring and O-ring.
–
Set the idle air adjusting screw to the specified value.
Alternative 2
–
Set the idle air adjusting screw to the value determined when it was disassem-
bled.
303353-11
–
Position the float needle valve and float
3
.
–
Mount fulcrum pin
4
.
303352-11
–
Mount and tighten main jet
5
.
Guideline
Main jet M5x0.75 2 Nm (1.5 lbf ft)
–
Mount and tighten idling jet
6
.
Guideline
Idling jet M5 2 Nm (1.5 lbf ft)
–
Mount and tighten cold start jet
7
.
Guideline
Cold start jet M5 2 Nm (1.5 lbf ft)
–
Check/adjust the float level. ( p. 193)