Weekly
Check tyre pressures and remove any embedded stones or pieces of metal.
Oil brake pedal pivot and all exposed joints and cables.
Examine the batter
and to
u
if necessar
. More fre
uent examination is
advisable in a hot climate.
Check brake adjustment.
Every 1,000 miles
Check rear chain adjustment.
Check oil level in gearbox and top up if necessary.
Clean air filter.
Grease swinging fork pivots (2).
Grease clutch control.
Oil central stand pivots.
Every 2,000 miles
Check tightness of all nuts and bolts.
Change oil in gearbox.
Grease brake cams.
Every 5,000 miles
Check contact breaker adjustment and grease the felt pad.
Every 10,000 miles
Drain and re-fill front forks.
ENGINE
Lubrication
Lubrication for the engine is provided by oil dissolved in the petrol to provide a
mixture commonly called “petroil”. The filler cap on top of the petrol tank will be
found to incorporate a tubular extension which projects into the tank. This serves as
a measure for lubricating oil and is used for preparing the correct mixture of petrol
and oil required. The correct proportion of oil to petrol is given on page 20, and the
grades of oil recommended should be used, as lighter grades may prove unsuitable.
For correct running of the engine and also for adequate lubrication, it is essential
that the oil should be completely dissolved in the petrol, and it is, therefore,
preferable to use self mixing oils specially prepared for two-stroke engines as
detailed in the list of recommended lubricants (page 20). Alternatively, ready-mixed
oil and petrol can be obtained from dispensers kept by many garages, but in this case
it should be noted that a different proportion of oil to petrol is required in accordance
with the instructions given in the list of lubricants. As the only lubrication for the
engine is by means of fuel drawn in through the carburetter, the machine must not be
coasted downhill for long periods with the throttle shut as the engine may suffer
seizure through lack of lubrication.
The engine mainshaft bearings are automatically lubricated, those on the driving
side from the chaincase, and those on the opposite side from the gearbox. Special
seals prevent transference of this oil to the crankcase.
12
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