Adjusting Idle Speed; Draining Of Float Chamber Of The Carburetor; Oil Circuit - KTM 640 DUKE II 2001 Owner's Handbook Manual

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Adjust idling speed *
Use the adjusting screw
and, thus, the idle speed.Turning in clockwise direction will increase the
idling speed, turning in counterclockwise direction will reduce the idling
speed. Normal idling speed 1400 - 1500 rpm.

Draining of float chamber of the carburetor

Following every wet-cleaning procedure, the float chamber of the carbure-
tor should be drained in order to remove any water that may have penetra-
ted into it. Water in the float chamber leads to engine malfunction.
Wait until the engine is cold before commencing to perform the worksteps
indicated below.
2
Close the fuel tap.
Put the end of the hose
appropriate container.
Open the drain plug
fuel drain from the float chamber.
Then tighten the drain plug and open the fuel tap.
F
UEL IS EASILY FLAMMABLE AND TOXIC
THE UTMOST CAUTION
XIMITY OF OPEN FLAMES OR BURNING CIGARETTES
COOL OFF FIRST
M
ATERIALS SATURATED WITH FUEL ARE ALSO EASILY FLAMMABLE
3
FUEL OR FUEL SPLASHED INTO YOUR EYES

Oil circuit

The oil pump
12
the oil filter
that injects motor oil to the piston pin bearing and the piston head. The
second oil line leads the main oil flow to the frame breast pipe
motor oil is cooled off. Then the motor oil flows through the fine screen fil-
6
ter that removes even the finest of contaminants from the motor oil. The
cleansed motor oil is pumped via an oil line and the clutch cover into the
crankshaft to the conrod bearing
case. A additional oil pump
and pumps it through the oil canal
4
gears. The motor oil reaches the oil sump via the gear wheels. The timing
bk
chain also dips into the oil sump and propels motor oil upwards to the
cylinder head. The motor oil reaches the camshaft
through the bore
3
1
to adjust the basic position of the throttle valve
2
that leads downward behind the engine into an
3
, turning it counterclockwise a few times, and let the
WARNING
. W
HEN HANDLING FUEL
. N
EVER PERFORM ANY WORK ON THE FUEL SYSTEM IN THE PRO
. I
MMEDIATELY CLEAN UP ANY FUEL WHICH MAY HAVE BEEN SPILLED
,
CONSULT A DOCTOR IMMEDIATELY
1 pumps the motor oil past the bypass valve
3
. Beyond the oil filter, one of the oil lines forks off to a jet
7
and drains from there into the crank
8
suctions the motor oil out of the crank case
9
to the gear wheels of the 4th and 5th
bl
.
,
BE SURE TO EXERCISE
. A
LWAYS ALLOW THE ENGINE TO
. I
N CASE YOU INGESTED
.
2 and through
4
5 where the
bm
and the valves
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-
.