Cleaning The Air Filter; Adjusting Idle Speed; Adjusting The Throttle Cable; Adjusting The Choke Cable - KTM DUKE 640 e Owner's Handbook Manual

Cleaning the air filter*

Remove seat and left side cover. Remove the filter box cover. Unhook the
1
1
filter holder , swing it backwards and take air filter and filter support out
of the filter box.
! CAUTION !
D
O NOT CLEAN FOAM RUBBER FILTER WITH FUEL OR PETROLEUM SINCE THESE DAMAGE
. KTM PUTOLINE
THE FOAM RECOMMENDS THE PRODUCTS OF THE COMPANY FOR
. „A C "
AIR FILTER MAINTENANCE CTION LEANER FOR CLEANING PURPOSES AND
„A F " .
CTION LUID TO OIL THE FOAM RUBBER FILTER
Thoroughly wash the foam rubber filter in special cleaning fluid and allow
to try well. Only press out the filter, do not wring out under any circum-
stances. Oil the dry foam rubber filter with a high grade filter oil. Also clean
the air filter box. Check carburetor collar for damage and tight fit.
B
2 A
Mount the air filter on the filter support . Grease the front side of the
filter, to improve the seal. Mount the air filter and the filter support in the
1
B
filter box. Make sure they are centered , and lock into place with the fil-
1
ter bracket .
2
A
29

Adjusting idle speed*

Idling adjustment of the carburetor strongly affects the engine's starting
behavior. That is, an engine whose idling speed is adjusted correctly will be
easier to start than one whose idling speed has not been adjusted correctly.
3
The throttle stop screw is used to adjust the basic position of the slide.
Turning in clockwise direction will increase the idling speed, turning in
counterclockwise direction will reduce the idling speed. Normal idling
speed 1400 - 1500 rpm.
4
The mixture control screw never should be changed.
3
4

Adjusting the throttle cable*

3-5 mm
There must always be a 3-5 mm (0.1-0.2 in) play in the throttle cable. To
5
check this, move back the protective cover on the throttle grip. You
must be able to lift the outer covering of the cable 3-5 mm from the adju-
6
sting screw , until resistance is felt.
7
To adjust, loosen the counter nut and turn the adjusting screw accor-
dingly. Finally tighten counter nut and slide the protective cover back on.
6
7
5

Adjusting the choke cable*

At the choke cable, there must always exist a play of approx. 2 mm (0.1
in). To check this, push choke lever fully forward and pull protective cover
8 9
from the adjuster piece . Now, it must be possible to lift the outer
covering of the cable by approx. 2 mm from the adjuster piece until feeling
a resistance. If necessary, loosen counter nut and readjust play by turning
the adjuster piece. Tighten counter nut, and slide on protective cover.
8
9