Checking The Oil Level Of The Hydraulic Clutch; Bleeding Of The Hydraulic Clutch; Draining The Float Chamber Of The Carburetor - KTM 2006 660 SMC Owner's Manual

MAINTENANCE WORK ON CHASSIS AND ENGINE
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Checking the oil level of the hydraulic clutch

To check the oil level in the master cylinder of the clutch remove the cover.
For this purpose, remove screws [1] and cover [2] together with the rubber
boot [3]. The oil level in the horizontal-standing master cylinder should be 4
mm below the upper edge.
If necessary, fill up with biodegradable hydraulic oil SAE 10 (e.g. Motorex
Kupplungs-Fluid 75).Biodegradable hydraulic oil is available from your KTM
dealer (50ml).
KTM USES BIODEGRADABLE, HYDRAULIC MINERAL OIL TO ACTUATE THE HYDRAULIC
CLUTCH. DO NOT MIX THIS OIL WITH ANY OTHER HYDRAULIC OIL. ALWAYS USE
ORIGINAL KTM HYDRAULIC OIL (AVAILABLE FROM YOUR AUTHORIZED KTM WORK-
SHOP) TO MAKE SURE YOUR CLUTCH OPERATES SMOOTHLY.
NEVER REFILL WITH BRAKE FLUID.
Bleeding the hydraulic clutch *
If the clutch lever starts to feel unresponsive, the clutch control system needs
to be bled. You will need a bleeder syringe (special tool) and biodegradable
hydraulic oil. Both are available from your KTM dealer.
Turn the handlebar until the master cylinder is in a horizontal position, remove
the screws [1], the cover [2] and the rubber boot [3].
Fill the bleeder syringe [4] with biodegradable hydraulic oil (Motorex Kupplungs-
fluid 75). Remove the bleeder screw [5] from the slave cylinder and mount
the bleeder syringe. Press oil into the system until the oil runs out of the hole
[6] in the master cylinder without bubbles. Occasionally extract the oil from
the master cylinder reservoir to keep it from overflowing.
After you finish bleeding, remove the bleeder syringe, mount the bleeder screw,
correct the oil level in the reservoir and mount the cover (see above).
KTM USES BIODEGRADABLE, HYDRAULIC MINERAL OIL TO ACTUATE THE HYDRAULIC
CLUTCH. DO NOT MIX THIS OIL WITH ANY OTHER HYDRAULIC OIL. ALWAYS USE
ORIGINAL KTM HYDRAULIC OIL (AVAILABLE FROM YOUR AUTHORIZED KTM WORK-
SHOP) TO MAKE SURE YOUR CLUTCH OPERATES SMOOTHLY.
NEVER REFILL WITH BRAKE FLUID.

Draining the float chamber of the carburetor

Following every wet cleaning procedure, the float chamber of the carburetor
should be drained in order to remove any water that may have penetrated into
it. Water in the float chamber causes malfunctioning. Perform this task on a
cold engine.
Close the fuel tap and put one end of the hose [7] into a collecting vessel.
Open the drain plug [8] (turning it counterclockwise) by serval turns, and drain
the fuel from the float chamber.
Then, retighten the drain plug and open the fuel tap.
– FUEL IS EASILY FLAMMABLE AND TOXIC. WHEN HANDLING FUEL, BE SURE
TO EXERCISE THE UTMOST CAUTION. NEVER PERFORM ANY WORK ON THE
FUEL SYSTEM IN THE PROXIMITY OF OPEN FLAMES OR BURNING CIGARETTES.
– ALWAYS ALLOW THE ENGINE TO COOL OFF FIRST. IMMEDIATELY CLEAN UP
ANY FUEL WHICH MAY HAVE BEEN SPILLED. MATERIALS SATURATED WITH
FUEL ARE ALSO EASILY FLAMMABLE. IN CASE YOU INGESTED FUEL OR FUEL
SPLASHED INTO YOUR EYES, CONSULT A DOCTOR IMMEDIATELY.
– DISPOSE THE FUEL PROPERLY!
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