KTM 250 EXC RACING - Manual (Page 48)

ENGLISH
47
Engine oil
Only use fully synthetic branded oils (Shell Advance Ultra 4) meeting or sur-
passing the quality requirements of API classes SG or SH (see specifications
on the container).
! CAUTION !
I NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE ENGINE .
Changing the engine oil *
NOTE: W HEN CHANGING THE ENGINE OIL , IT IS NECESSARY TO CLEAN THE SHORT AND
LONG OIL SCREENS AND TO REPLACE BOTH OIL FILTERS .
Engine oil has be changed with the engine at an operating temperature.
! CAUTION !
A N ENGINE AT OPERATING TEMPERATURE AND THE ENGINE OIL IT CONTAINS ARE VERY
HOT - DO NOT BURN OR SCALD YOURSELF .
Place the motorcycle on a horizontal surface, remove the plug 1 and allow
the oil to drain into a receptacle.
Clean plug (with magnet) thoroughly.
Once the entire oil has been drained, clean the sealing surface, mount the
plug together with the sealing ring and tighten it to 20 Nm.
CLEANING THE SHORT OIL SCREEN
The short oil screen
2 is accommodated in the hex-socket plug 3 at the
engine bottom. Insert a pin-type key into the plug and tap on the key a few
times with a hammer in order to relieve the stress acting on the plug. Dis-
mount the oil screen, clean the components thoroughly and blow com-
pressed air through them. Check the O-rings for damage and, if necessary,
replace them. Mount the oil screen together with the plug again and tighten
the plug to 10 Nm.
CLEANING THE LONG OIL SCREEN
The long oil screen is accommodated in the hexagon plug
4 adjacent to
the engine number. Dismount the plug together with the oil screen, clean
the components thoroughly and blow compressed air through them. Check
the O-rings for damage and, if necessary, replace them.
To mount the long oil screen 5 , place it on an approx. 300 mm (12 in) long
pin-type key or a similar tool. Insert the pin-type key through the opening
into the bore of the opposite engine casing wall. Then, push the oil screen
into the engine casing as far as possible. Remove the pin-type key, mount
the plug and tighten it to 15 Nm.
! CAUTION !
T HE OIL SCREEN IS MOUNTED SLIGHTLY DOWNWARDS , INCORRECTLY FITTED , THE SCREEN
LOOSES ITS FUNCTION AND THIS CAN CAUSE INCREASED ENGINE WEAR .
ŀ Ł
– + 0°C
32°F
15W 40
15W 50 10W 40
10W 50
API: SG, SH
TEMPERATURE
1
4
2
3
5