Checking The Choke Slide; Checking The Jet Needle; Checking The Throttle Slide - KTM 250 EXC EU Repair Manual

19 CARBURETOR
19.8

Checking the choke slide

19.9

Checking the jet needle

19.10

Checking the throttle slide

–
Remove needle screw cap
–
Pull the jet needle out of the throttle slide.
303354-10
Condition
The choke slide has been removed.
–
Check the choke slide for smooth operation.
» If the choke slide is difficult to move or is dirty:
–
Clean the choke slide and check its activation.
–
Check the piston of the choke slide for damage and wear.
» If the piston of the choke slide is damaged or worn:
–
Change the choke slide.
–
Check the rubber sleeve and lock.
» If the rubber sleeve is damaged or brittle, or if the lock is not functioning:
700050-10
–
Change the choke slide.
Condition
The jet needle has been removed.
–
Check the jet needle for bending and wear of the coating.
» If the jet needle is bent, or the coating is damaged or worn:
–
Change the jet needle.
–
Check the needle clip for tightness.
» If the needle clip is loose:
–
Change the needle clip or jet needle.
303355-10
Condition
The throttle slide has been removed.
–
Check the throttle slide for damage and wear.
» If the throttle slide is damaged or worn:
–
Change the throttle slide.
–
Check the coating of the throttle slide for damage and wear.
» If the coating is broken or worn:
–
Change the throttle slide.
303356-10
.
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