Changing The Engine Oil (Sx, Sc); Replacing And Bleeding The Microfilter (Sx, Sc); Oil Circuit (Egs) - KTM 400 SX Owner's Handbook Manual

1
2
4
5
1 1
5
10
7
6
8
1
2
9

Changing the engine oil (SX, SC)*

The engine oil change is to be carried out when the engine is still warm.
A
N ENGINE HAVING BEEN RUN WARM
BURN YOURSELF
Place the motorbike on a horizontal surface. Remove the two plugs (
and drain oil into a container.
A
T
HE SCREW PLUG
Clean the plugs thoroughly with a fireproof solvent and compressed air, in order
to remove the metal abrasion. After all the oil has drained through, clean raised
and flat faces and install plugs with seals. Tighten plug
ft.lb)and plug
Remove oil dipstick on the clutch cover and fill with 1.5 litre engine oil (Shell
Advance Ultra 4).
Warm up engine, check engine oil level and refill up to the marking MAX. Finally
check the oil system for leaks.
3
Changing and bleeding the microfilter (SX, SC)*
Replace the microfilter while changing the engine oil. To do so, remove hexagon
3
screws
parts and check the O-ring on the microfilter lid for signs of damage. Before
installing the new micro filter, soak it in clean engine oil. Place a new microfilter
in the filter housing, apply a thin layer of grease to the O-ring and mount the
microfilter cover.
It is necessary to bleed the micro filter so that all friction areas can be quickly sup-
plied with engine oil. To do this, fill with oil and remove the jet screw
oil line on the clutch cover. Start the engine and close off the oil filler hole on the
clutch cover with a rag. Allow the engine to run at idle until oil runs out of the oil
5
line . Turn the engine off. Install seal rings and the jet screw. Torque the jet
screw to 10 Nm and check for leaks.
6
12

Oil circuit (EGS)

The oil pump
3
ter . After the oil filter, an oil lead branches off to a jet
4
oil onto the piston pin bearing and piston head. The second oil lead takes the
main flow of oil into the front pipe of the frame
down. Afterwards the engine oil runs through the fine screen filter
ters out even the finest impurities. The cleaned engine oil is pumped through the
oil lead and the clutch cover into the crankshaft to the connecting rod bearing
and drips into the crankcase. An additional oil pump
the crankcase and pumps it through the oil line
and 5th gear. Via the gear wheels, the engine oil reaches the oil sump. The timing
bk
chain runs through the oil sump and transports the engine oil upwards to the
cylinder head. Through the bore
valves.
3
WARNING
,
AND THE ENGINE OIL IN IT ARE VERY HOT
.
!
CAUTION
A
,
MUST NOT BE REMOVED THIS IS PART OF THE BY
2
with 20 Nm (15ft.lb).
and take off the microfilter cover
1
pumps the engine oil past the by-pass valve
bl
the oil reaches the camshaft
-
DO NOT
1
and
!
- .
PASS VALVE
1
with 30 Nm (22
4
. Remove the microfilter, clean its
6
from the
2
through the oil fil-
4
which sprays engine
5
, where the engine oil is cooled
6
, which fil-
8
sucks the engine oil out of
9
to the gear wheels of the 4th
bm
and the
2
),
33
7