Suzuki FA50, Service Manual

Page: 24 / 74

CYLI N D E R HEAD NUTS
Retighten at initial 1 000
km
(600
miles)
and
every 3
000
km
(2 000 miles)
• Cy l i nder head nuts, when they are not
tightened to the specified torque, may
result in leakage of the compressed
mixture and reduce output. Tighten the 4
nuts evenly one by one in stages until
each one is tightened to the specified
torque. Tighten the nuts in the order
indicated below.
Cylinder head
nut
tightening torque
0.8 - 1.2 kg·m
(6.0 -
8.5
lb-ft)
CYLI N D E R HEAD AND CYLIN DER
Remove carbon every 6 000 km
(4 000 miles)
Carbon deposits i n the combustion chamber
and the cylinder head will raise the com­
pression ratio and may cause pre-ignition or
overheating. Carbon deposited at the ex­
haust port of the cylinder wi l l prevent the
flow of exhaust, reducing the output. Re­
move carbon deposits periodically.
INSPEC/10N l'lND ADJUS"fMENT
2-7
FUEL LI N E
every
two years
Replace the fuel line every two years.
OIL PUM P
at initial 1 000 km
a��
eve
:_
3
000
km
(2 000
•
Air
bleeding
Whenever evidence is noted of some air
having leaked into the oil line from the oil
tank i n
a
machine brought in for servicing,
or if the oil pump has to ·be removed for
servicing, be sure to carry out an air bleeding
operation with the oil pump in place before
returning the machine to the user.
How to bleed the air: With the engine not
running condition; loosen screw
CD,
to let
out the air; and, after making sure that the
trapped air has a l l been bled, tighten the
screw good and hard.