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1.32
Routine maintenance and servicing procedures
1 Remove the old spark plug as described in
Section 17 and install a new one.
19 Cooling system
-
&
check (liquid-cooled enginl
17.la Open the engine access panel..
.
17.lb
. . .
and remove the spark plug cap
A
Warning: The engine must b e cool
before beginning this procedure.
A
Warning: D o n o t remove the
reservoir cap when the engine i s
hot.
It
i s good practice to cover
the cap with a heavy cloth and turn the cap
slowly anti-clockwise, I f you hear a hissing
sound (indicating that there i s still pressure
i n the system), wait until i t stops, then
continue turning the cap until i t can b e
removed.
1 Check the coolant level (see Daily (pre-ride)
checks).
17.5a Using a wire type gauge t o measure
17.5b Using a feeler gauge to measure the
The entire cooling system should be
the spark plug electrode gap
spark plug electrode gap
checked for evidence of leaks. Examine each
Check the condition of the threads and
bend the side electrode only and be very
coolant hose along its entire length, noting
washer, and the ceramic insulator body for
careful not to chip or crack the insulator nose
that you will need to remove the body panels
cracks and other damage.
(see illustration). Make sure the washer is in
on the right-hand side to access the hoses
4 If the electrodes are not excessively worn,
place before installing the plug.
(see
illustration). Look for cracks, abrasions
and if thedepositscan beeasily removed with
6 Since the cylinder head is made of
and other damage. Squeeze the hoses at
a wire brush, the plug can be re-gapped and
aluminium, which is soft and easily damaged,
various points. They should feel firm, yet
re-used (if no cracks or chips are visible in the
first thread the plug into the head by hand,
pliable, and return to their original shape when
insulator). If in doubt concerning the condition
Once the plug is finger-tight, tighten it
released. If they are hard or perished, replace
of the plug, replace it with a new one, as the
securely with the spark plug socket, then
them with new ones (see Chapter 3).
expense is minimal.
reconnect the plug cap.
3 Check for evidence of leaks at each cooling
5 Before installing the plug, make sure it is the
system joint. Ensure that the hoses are
correct type and heat range and check the gap
pushed fully onto their unions and that the
between the electrodes (see illustrations).
hose clips are tight. Note: Check the tension
Compare the gap to that specified and adjust
of the hose spring clips and replace them with
as necessary. If the gap must be adjusted,
new ones i f they are loose.
1 7 . 5 ~ Adjust the electrode gap by bending the side electrode only
19.2 The coolant hoses run along the right-hand side of the
scooter
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