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

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34
2
API: SG, SH
TEMPERATUR
–
10W 40
10W 50
4
2
3
+
0°C
32°F
15W 40
15W 50
MAX
MIN
Adjust idling speed *
1
Use the adjusting screw to adjust the basic position of the throttle valve
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.
Close the fuel tap.
2
Put the end of the hose that leads downward behind the engine into an
appropriate container.
3
Open the drain plug , turning it counterclockwise a few times, and let the
fuel drain from the float chamber.
Then tighten the drain plug and open the fuel tap.
WARNING
F
UEL IS EASILY FLAMMABLE AND TOXIC
. N
THE UTMOST CAUTION EVER PERFORM ANY WORK ON THE FUEL SYSTEM IN THE PRO
XIMITY OF OPEN FLAMES OR BURNING CIGARETTES
. I
COOL OFF FIRST MMEDIATELY CLEAN UP ANY FUEL WHICH MAY HAVE BEEN SPILLED
M
ATERIALS SATURATED WITH FUEL ARE ALSO EASILY FLAMMABLE
FUEL OR FUEL SPLASHED INTO YOUR EYES

Engine oil

Only use synthetic high-quality oils (Shell Advance Ultra 4) meeting or sur-
passing the quality requirements of API classes SG, or SH (for specifications
see containers).
!
I
NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE ENGINE
Checking the engine oil level
Allow the engine to run at idle speed for about 4 minutes. Turn off the
engine and place the motorcycle on a flat, level surface (center stand). Wait
5 minutes, unscrew and remove the oil dipstick
a cloth.
SCREW THE DIPSTICK IN ALL THE WAY AND REMOVE IT AGAIN.
The oil level should be between the two marks on the dipstick , however, it
must never rise above the MAX mark. Otherwise, engine oil would get into
the air filter box by way of the engine venting system.
Add engine oil if necessary.
!
– I
NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE
.
ENGINE
– C
HECKING THE ENGINE OIL LEVEL WHEN THE ENGINE IS COLD RESULTS IN A FALSE
READING ON THE OIL DIPSTICK AND THEREFORE AN INCORRECT OIL LEVEL
– D
O NOT OVERFILL THE ENGINE CASE
– D
O NOT UNDERFILL THE ENGINE CASE
Finally, check oil system and engine for leaks.
. W ,
HEN HANDLING FUEL BE SURE TO EXERCISE
. A
LWAYS ALLOW THE ENGINE TO
. I
N CASE YOU INGESTED
,
CONSULT A DOCTOR IMMEDIATELY
CAUTION
4
, and wipe it clean with
CAUTION
.
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