Suzuki FA50 Service Manual page 24

CYLI N D E R H E A D NUTS
Retighten at initial 1 000
and 000 (2 000 miles)
every 3 km
• Cy l i nder head nuts, when they are not
tightened to the specified torque, may
result in leakage of
mixture and reduce output. Tighten the 4
nuts evenly one by one i n stages until
each one is tightened to the specified
torque. Tighten the nuts in the order
i n dicated below.
Cylinder head
nut
tightening torque
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.
move carbon deposits periodical l y .
(600
km miles)
the compressed
0.8 - 1.2 kg·m
(6.0 -
8.5 lb-ft)
Re­
INSPEC/10N l'lND ADJUS"fMENT
FUEL LI N E
two years
Replace the fuel l i n e every two years.
OIL PUM P
:_
a� � 000 (2 000
eve 3 km
bleeding
Air
Whenever evidence is noted of some a i r
having leaked i n t o t h e o i l l i ne from t h e oil
a
tank i n machine brought i n for servicing,
or if the oil pump has to
servicing, be sure to carry out an a i r bleeding
operation with the oil pump i n place before
returning the machine to the user.
running condition; loosen screw CD, to let
How to bleed the air: With the engine not
out the air; and, after making sure that the
trapped a i r has a l l been bled, tighten the
screw good and hard.
2-7
•
·
be removed for