Coolant Level Check; Cleaning The Air Filter; Exhaust System - KTM 400 SX Owner's Handbook Manual

1
28
B
3
5
10 mm
when engine is cold
1
A
2
4
7
7
6
Checking the coolant level
The coolant should be 10 mm (0,4 in) above the radiator fins when the engine is
cold (see illustr.). In the event of the coolant being drained, always fill and bleed
the system.
I ,
F POSSIBLE ALWAYS CHECK LEVEL OF COOLING LIQUID WHEN ENGINE IS COLD
HAVE TO OPEN THE RADIATOR CAP WHEN THE ENGINE IS HOT
CAP AND OPEN SLOWLY TO RELEASE PRESSURE
Cleaning of air filter*
To do this, remove the seat and the air filter cover from the air filter box. Unclap
1
the filter holder , swing back and remove air filter plus filter carrier from the fil-
ter box.
!
D
O NOT CLEAN FOAM FILTER WITH FUEL OR PETROLEUM SINCE THESE DAMAGE THE FOAM
KTM
RECOMMENDS THE PRODUCTS OF THE COMPANY
. „A C "
TENANCE CTION LEANER FOR CLEANING PURPOSES AND
.
FOAM FILTER
Thoroughly wash the foam filter in special cleaning fluid and allow to dry well.
Only press out the filter, do not wring out under any circumstances. Oil the dry
foam filter with a high grade filter oil. Also clean the air filter box. Check carburet-
tor collar for damage and that it is fitted correctly.
Mount the air filter on the filter support
to improve the seal. Mount the air filter and the filter support in the filter box.
B
Make sure they are centered , and lock into place with the filter holder

Exhaust system *

Aluminium silencers are filled with glass fiber yarn. If exposed to heat for longer
periods of time, however, the glass fiber yarn pack will come unravelled, which
can reduce both overall performance and the performance of the silencer. Experi-
ence has shown that the front glass fiber pack
4
than the rear pack .
To replace the front glass fiber yarn pack, remove the silencer. Remove the front
5
cap , pull the front glass fiber yarn pack out of the silencer, mount a new pack
on the internal exhaust pipe, insert the internal exhaust pipe into the silencer and
replace the cap.
To replace the rear glass fiber yarn pack, drill the rivets open and remove the rear
6
cap .
7
Always renew the O-rings .
Glass fiber yarn packs are available in your KTM store.
T
HE EXHAUST SYSTEM BECOMES VERY HOT WHILE THE MOTORCYCLE IS RUNNING
D
BURNS O NOT START WORK ON THE EXHAUST SYSTEM UNTIL IT HAS PROPERLY COOLED
.
DOWN
WARNING
,
USE A RAG TO COVER THE
.
CAUTION
PUTOLINE
FOR AIR FILTER MAIN
„A
CTION
2
. Grease the front side
3
must be replaced more often
WARNING
. I
F YOU
!
.
-
F "
LUID TO OIL THE
A
of the filter,
1
.
.
TO AVOID