KTM 400-660 LC4 1998-2005, Repair Manual

Page: 18 / 501

2-3E
Changing the microfilter
Replace the microfilter while changing the engine oil.
– To do so, remove bolts
1
and take off the microfilter cover
2
.
– Remove the microfilter, clean its parts and check the O-ring on the
microfilter cover for signs of damage.
– Insert a new microfilter into the filter housing, tilt the motorcycle
sideways and fill the microfilter housing with engine oil.
– Slightly grease the O-ring and mount the microfilter cover. Then put
the motorcycle back on its stand.
– It is necessary to bleed the microfilter so that all lubricating points
can be quickly supplied with engine oil.
– To do this, fill with oil and remove the jet screw from the oil line on
the clutch cover.
– Start the engine and close off the bore on the clutch cover with a
rag.
– Allow the engine to run at idle until oil runs out of the oil line
3
.
– Turn off the engine. Mount the jet screw, using two new seal rings.
– Torque the jet screw to 10 Nm and check for leaks.
– Start the engine and let it idle for 1 - 2 minutes.
!
CAUTION
!
D
O NOT REV UP THE ENGINE IMMEDIATELY AFTER AN OIL CHANGE
! K
EEP IN MIND
THAT IT TAKES SOME TIME UNTIL ALL LUBRICATING POINTS ARE PROPERLY PROVIDED
WITH ENGINE OIL
.
– Allow the engine to run until warm. Then, turn off the engine, and
place the motorbike on a flat, level surface in an upright position
(center stand). Wait for 5 minutes. Unscrew and remove the oil
dipstick, and wipe it clean with a cloth.
– Screw the dipstick in all the way and remove it again. The oil level
should be between the two marks on the oil 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.
– Finally, check oil system and engine for leaks.
!
CAUTION
!
– O
NLY USE HIGH
-
QUALITY OILS MEETING OR SURPASSING THE QUALITY
REQUIREMENTS OF
JASO T903 MA (
FOR SPECIFICATIONS SEE CONTAINERS
).
– I
NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE
ENGINE
.
– Y
OU MAY USE EITHER MINERAL OILS OR SYNTHETIC OILS FULFILLING THE ABOVE
CRITERIA
.
NOTE: Dispose of used oil properly !
Under no circumstances may used oil be disposed of in the sewage
system or in the open countryside.
1 liter oil contaminates 1.000.000 liter water.
3
1
1
2
0°C
32°F
10W/50 5W/40
JASO T903 MA
TEMPERATURE