KTM 250 EXC RACING Owner's Manual page 87

8
Oil circuit
Via the long oil screen , the oil pump
2
an oil line into the cylinder head for camshaft lubrication
3
branches off to the long oil filter
arrives at the short oil filter
Now, the purified engine oil is pumped past the bypass valve
through a nozzle .
bk
The second oil pump
lubricating the transmission gears
7
6
5
13
2
draws engine oil from the oil sump of the transmission. This engine oil flows through
1
where the coarser particles contained in the engine oil are filtered away. Then, the engine oil
6
which also filters the fine particles.
7
draws the engine oil via the short oil screen
bl
.
bn
4
3
11
10
1
12
; the oil quantity is controlled by the jet bolt
4
to the conrod bearing
8
9
5
and sprayed from below onto the piston
9
out of the crankcase, thereby
bm
2-2E
. An oil duct