KTM 450 EXC-R EU - Manual (Page 79)

MAINTENANCE WORK ON CHASSIS AND ENGINE
77
400340-10
ದ Inject the liquid into the system until it escapes from the bore hole b of the mas-
ter cylinder without bubbles.
ದ To prevent overflow, drain fluid occasionally from the master cylinder reservoir.
ದ Remove the bleeding syringe. Mount and tighten screws bleeder screw.
ದ Correct the fluid level of the hydraulic clutch.
Specification
Fluid level under top level of container. 4 bmm (0.16bin)
ದ Check parts for damage and wear. Replace damaged or worn parts.
ದ Position the cover with the membrane. Mount and tighten screws.
Info
Clean up overflowed or spilt fluid immediately with water.

Carburetor - idle
400341-10
The idle setting of the carburetor has a big influence on the starting behavior, stable
idling and the response to throttle opening. That means that an engine with a correctly
set idle speed is easier to start than if the idle is set wrongly.
Info
The carburetor and its components are subject to increased wear caused by en-
gine vibration. Wear can result in malfunctioning.
The idle speed is adjusted with the adjustment screw b  .
The idle mixture is adjusted with the idle mixture adjustment screw b  .

Carburetor - adjusting idle b
x
400341-10
ದ Screw in the idle adjusting screw b  until it stops and then to the prescribed basic
setting.
Specification
Idle mixture adjusting screw (XCR-W bUSA)
Open 0.5 bturn
Idle mixture adjusting screw (EXC-R bSIXbDAYS)
Open 1.0 bturn
Idle mixture adjusting screw (XCR-W bZA, 530bEXC-RbEU, 530bEXC-RbAUS/UK)
Open 1.5 bturns
Idle mixture adjusting screw (450 bEXC-RbEU, 450bEXC-RbAUS/UK, 450bEXC-
R bUSA)
Open 1.75 bturns
Idle mixture adjusting screw (530 bEXC-RbUSA)
Open 2.0 bturns
Adjustment tool for mixture control screw (77329034000)
ದ Run the engine until warm.
Specification
Warm-up time ุb5bmin