KTM ENDURO 640 LC4 - Manual (Page 41)

ENGLISH
40
MAINTENANCE WORK ON CHASSIS AND ENGINE
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Checking and adjusting the choke cable play *
The choke lever must always have a play of approx. 4 mm (0.16 in).
IF THERE IS NO PLAY IN THE CHOKE CABLE, THE BORE OF THE COLD STARTER
SYSTEM CANNOT BE COMPLETELY CLOSED. THIS RESULTS IN HIGH FUEL CON-
SUMPTION, AN UNEVEN RUNNING ENGINE, AND AN EXTREME WEAR OF PISTON
AND CYLINDER.
Remove the seat and tank to adjust.
Push the choke lever all the way to the front and slide the protecting cap [1]
from the adjusting part [2].
Loosen the lock nut [3] and correct the play by turning the adjusting part.
Tighten lock nut and slide protecting cap back on.
Mount the tank and seat.
Checking the adjustment of the hand decompression cable *
To check, set piston at compression, so that the valves are closed. While doing
this, slowly operate the kickstarter through its stroke until the clicking sound
(disengaging) of the automatic decompression can be heard. Now the decom-
pression lever must be operated 25 mm (1 in) until resistance is felt (the
exhaust valves begin to open). To adjust move back the protective cover [4],
loosen the counter nut and correct the adjusting screw [5] accordingly. Tighten
counter nut and push back protective cover.
IF THERE IS NO PLAY IN THE DECOMPRESSION LEVER, THIS CAN RESULT IN ENGINE
DAMAGE.
note: No adjustment need be made to the automatic decompressor.
Adjust the throttle cable *
When starting to turn the throttle grip, you should feel an initial backlash of
3-5 mm (0.12-0.2 in).
If a correction is necessary, start by removing the tank. Slide back the pro-
tection cover [6]. To set the backlash, loosen the counter nut [7] and turn the
adjusting screw [8] accordingly. Then, fasten the counter nut and slide the
protection cover back on.
Make sure that the throttle grip will return to the idle position automatically
once you let go of it.
To check the correctness of this setting, start the engine, turn the handlebar
left and right, in both cases as far as it will go. This must not cause any changes
in idling speed. Otherwise, you have to increase the backlash of the throttle
cable.
3-5 mm
6
7
25 mm
4 mm
1
2
3
4
5
8