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•
Pull out the cord approx. 30cm (12 inches) and hook it
into the notch in the rim of the pulley. Release the recoil
spring by letting the pulley rotate slowly backwards.
•
Undo the screw in the centre of the pulley and remove
the pulley. Insert and fasten a new starter cord to the
pulley. Wind approx. 3 turns of the starter cord onto the
pulley. Connect the pulley to the recoil spring so that the
end of the spring engages in the pulley. Fit the screw in
the centre of the pulley. Insert the starter cord through
the hole in the starter housing and the starter handle.
Make a secure knot in the end of the starter cord.
Tensioning the recoil spring
•
Hook the starter cord in the notch in the pulley and turn
the starter pulley about 2 turns clockwise.
Changing a broken recoil spring
•
Lift off the pulley. See instructions under Changing a
broken or worn starter cord.
•
Remove the recoil spring from inside the pulley by
tapping the pulley lightly with its inside face downwards
against a work bench or similar. If the spring pops out
during fitting, wind it up again, working from the
outside in towards the centre.
•
Lubricate the recoil spring with light oil. Fit the pulley
and tension the recoil spring.
Fitting the starter
•
To fit the starter, first pull out the starter cord and place
the starter in position against the crankcase. Then slowly
release the starter cord so that the pulley engages with
the pawls.
•
Fit and tighten the screws that hold the starter.
Air filter
The air filter must be regularly cleaned to remove dust and
dirt in order to avoid:
•
Carburettor malfunctions
•
Starting problems
•
Loss of engine power
•
Unnecessary wear to engine parts
•
Excessive fuel consumption.
•
Remove the air filter after taking off the air filter cover.
When re-fitting, make sure that the air filter seals tightly
against the filter holder. Clean the filter by brushing or
shaking it.
The filter can be cleaned more thoroughly by washing it in
water and detergent.
An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced
with a new one at regular intervals. A damaged air filter
must always be replaced.
Spark plug
The spark plug condition is influenced by:
•
Incorrect carburettor adjustment.
•
An incorrect fuel mixture (too much or incorrect type
of oil).
•
A dirty air filter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difficulties.
MAINTENANCE
NOTE: Check that the pulley can be turned an
additional 1/2 turn when the starter cord is pulled all
the way out.
BT-CS-40
