.
Changing the
Oil
I
I
CHANGING
THE
OIL
I
When the machine
is
new the oil should be changed frequently during the running-in
period in order. to make certain that any foreign matter which the oil picks up in
'
the course of
its
circulation shall be eliminated.
1
ENGINE
The oil should be changed at 250, 500 and 1,000 miles (400, 800 and 1,600 kms.)
during the running-in period and thereafter every 1.500 miles (2,500 kms.)
regularly. When changing the oil
it
is
essential that the oil
filters
are thoroughly
cleaned in petrol.
I
Oil
Tank Filter. To remove, unscrew the union nut attaching the feed pipe to
the tank and then the large hexagonal nut to which the filter
is
fitted.
Crankcase Filter. This filter
is
located in the base of the crankcase, to remove,
unscrew the four hexagon headed screws (on
later
models the sump plate
is
held by
four nuts). Withdraw the filter carefully
to
avoid damage ro the gauze.
It
is
advisable to flush out the oil tank with a flushing oil which
is
obtainable from
most garages or accessory dealers. The flushing oil can be filtered through
a
piece
of muslin and retained for further use. If the tank
is
very dirty
it
should be removed
from the machine and thoroughly cleaned.
After the lubrication system has been drained and re-filled,
all
the joints which have
been disconnected and the oil tank drain plug should be gone over again with
a
spanner to make certain that they are perfectly tight before the engine
is
started up.
When the engine
is
again started, immediately check to see that the oil indicator
is
projecting and that the oil
is
returning to the tank. Inspect all joints for oil tightness.
PRIMARY CHAINCASE
I
The oil in the primary chaincase should be changed every 1,000 miles (1,600 kms.),
or every month if
a
thousand miles has not been covered. The correct quantity
is
f
pint (200
c.c.).
By carefully maintaining the oil level and changing the oil at regular
intervals, the primary chain will be kept in excellent condition and will run for a
long mileage without attention. If the oil is allowed to become dirty and partially
broken down, wear will develop on the primary chain, which will require constant
adjustment. (See Oil Chart. page 202).
!
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GEARBOX
,
!
1;
.
,
The oil in the gearbox should be drainedand the gearbox flushed out after the machine
;I
has run
500
miles (800 kms.). Thereafter. the oil should be changed every 5.000
.,
/!
miles (8.000 kms.). but
it
is
advisable to check the oil level at thousand mile intervals.
/
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TELESCOPIC FORKS: See page
98.
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