Checking The Adjustment Of The Hand Decompression Cable; Engine Oil; Checking The Engine Oil Level; Oil Circuit - KTM 1998 400 R Owner's Handbook Manual

2
3
1
API: SF, SG, SH
TEMPERATURE
– 0°C
32°F
10W 40
10W 50
10W 60
11
5
10
7
6
8
1
2
9

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 decompression lever must be operated 25 mm (1 in) until resi-
stance is felt (the exhaust valves begin to open). To adjust move back the
protective cover
screw
25 mm
I
F THERE IS NO PLAY IN THE DECOMPRESSION LEVER
NOTE:
No adjustment need be made to the automatic decompressor.

Engine oil

Only use high-quality oils meeting or surpassing the quality requirements
of API classes SF, SG, or SH (for specifications see containers). You may use
either mineral oils or synthetic oils fulfilling the above criteria (i. e. Shell
Advance Ultra).
+
I
NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE ENGINE
15W 40
15W 50
15W 60
Checking engine oil level
Allow the engine to run at idle speed for about 4 minutes. Turn off the
engine and place the motorcycle on a flat, level surface (main stand). Take
out the oil dipstick and wipe it off with a cloth.
TWIST THE OIL DIPSTICK ALL THE WAY IN AND THEN RETRIEVE IT.
The oil level should be between the two marks on the dipstick. Add engine
MAX
oil (i. e. Shell Advance Ultra) if necessary.
MIN
– I
ENGINE
– C
READING ON THE OIL DIPSTICK AND THEREFORE AN INCORRECT OIL LEVEL
– D
– D
Check the engine for leaks.
12

Oil circuit

The oil pump
the oil filter
4
sprays engine oil onto the piston pin bearing and piston head. The second
oil line takes the main flow of oil into the front pipe of the frame
the engine oil is cooled down. Afterwards the engine oil runs through the
fine screen filter
engine oil is pumped through the oil line and the clutch cover into the
crankshaft to the conrod bearing
tional oil pump
through the oil line
gear wheels, the engine oil reaches the oil sump. The timing chain
through the oil sump and transports the engine oil upwards to the cylinder
head. Through the bore hole
valves.
3
1
, loosen the counter nut
3
accordingly. Tighten counter nut and push back protective cover.
! CAUTION
! CAUTION
! CAUTION
NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE
.
HECKING THE ENGINE OIL LEVEL WHEN THE ENGINE IS COLD RESULTS IN A FALSE
O NOT OVERFILL THE ENGINE CASE
O NOT UNDERFILL THE ENGINE CASE
1
pumps the engine oil past the by-pass valve
3
. After the oil filter, an oil line branches off to a jet
6
, which filters out even the finest impurities. The cleaned
8
sucks the engine oil out of the crankcase and pumps it
9
to the gear wheels of the 4th and 5th gear. Via the
bl
2
and correct the adjusting
!
,
THIS CAN RESULT IN ENGINE DAMAGE
!
!
.
.
7
and drips into the crankcase. An addi-
the oil reaches the camshaft
.
27
.
.
2
through
4
which
5
, where
bk
runs
bm
and the