3
GB
OIL CIRCUIT
Oil pump 3 sucks engine oil from the oil
sump through long oil unit 4. Oil pipe 5
conveys the oil to the cylinder head up to
camshaft lubrication point 6. The oil quan-
tity is adjusted by means of oil passage
screw 7. An oil pipe branches off towards
long oil unit 8, where the coarser particles
are filtered out. The oil then comes to short
oil unit 9, which filters out the smaller par-
ticles. The filtered oil is then pumped
through bypass valve 10 to small-end bear-
ing 11 and sprayed from below through
jet 12 onto the piston. A second oil pump
13 sucks oil from the crankcase through
short oil unit 14 and lubricates gears 15.
CHECKING THE ENGINE OIL LEVEL
The engine oil level can be checked when
the engine is cold or hot.
Place the vehicle in an upright position (not
on the side stand) on level ground.
When the engine is cold, the oil should
reach the lower edge of sight A.
A
When the engine is hot, the oil should
reach the upper edge of the sight.
Top up as necessary.
WARNING
The use of insufficient quantities of oil or of
oil of inferior quality results in premature
wear of the engine.
36