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4.
LUBRICATION
SYSTEM
LUBRICATION
SYSTEM DIAGRAM
4-0
TROUBLESHOOTING
4-1
SERVICE
INFORMATION
4-1
OIL
PUMP
4-2
SERVICE
INFORMATION
GENERAL
Used
engine
oil
may
cause
i
kin
cancer
if
repeatedly
lej)
in
contact with
the thin
for prolonged
periods.
Although
this ix
unlikely
unlew
you
handle used
oil
on
a
dally
basis,
it is
still
advisable
to
thoroughly
wash your hands
with
soap
and
water ax
soon
ax possible
after
handling used
oil
SPECIFICATIONS
Unit:
mm
(in)
ITEM
STANDARD
SERVICE
UMIT
Engine
oil
capacity
At draining
1.5
liter
(1.6
US
qt.
1.3
Impqt)
At disassembly
1.8
liter
(1.9
US
qt.
1.6
Impqt)
Recommended
engine
oil
Honda
GN4
4-stroke
oil
or equivalent
motor
oil
API
service
classification
SF
or
SG
Viscosity:
SAE
10W-40
Oil
pump
rotor
Tip clearance
0.15(0.006)
0.20 (0.008)
Body
clearance
0.15 -
0.21 (0.006 - 0.008)
0.25 (0.010)
Side clearance
0.05 - 0.13(0.002 -
0.005)
0.14(0.006)
TORQUE
VALUES
Oil
drain
bolt
25
N-m
(2.5
kgf-m.
18
Ibf-ft)
Oil
pump
mounting screw
10
N-m
(1.0
kgf-m,
7
Ibf-ft)
TROUBLESHOOTING
Engine
oil
contamination
•
Oil
not
changed
often
enough
•
Head
gasket
faulty
•
Worn
piston rings
Engine
oil
level
too
low
-
high
oil
consumption
•
External
oil
leaks
•
Worn
piston rings
•
Oil
not
changed
often
enough
•
Faulty
head
gasket
4-1
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