Suzuki GN125F, Service Manual

Page: 9 / 148

SERIAL NUMBER LOCATIONS
The frame serial number or V.I.N. (Vehicle
Identification Number) 1 is stamped on the right
side of the steering head pipe. The engine serial
number 2 is located on the left side of the
c r a n k c a s e . T h e s e n u m b e r s a r e r e q u i r e d
especially for registering the machine and
ordering spare parts.
FUEL AND OIL
RECOMMENDATIONS
FUEL
Use fuel with an octane number of 90-97
(Research method), preferably unleaded.
NOTE:
Unleaded fuel will extend spark plug life.
ENGINE OIL
Be sure that the motorcycle engine oil you use
comes under API classification of SF or SG and its
viscosity rating is SAE 10W-40. If SAE 10W-40
engine oil is not available, select the oil viscosity
according to the following chart:
SAE
20W/50
10W/50
10W/30
20W
10W
40
30
C
F
-20
-4
-10
14
0
32
10
50
20
68
30
86
40
104
Temp.
BREAK-IN PROCEDURE
During the manufacture only the best ossible
are used and all machined parts are
finished to a very high standard
allow the moving part to “BREAK-IN”
subjecting the engine to maximum stresses
s the care and restraint exercised during
its early life The general rules are as follows:
p
materials
, it is still necessary
to before
. The
future performance and reliability of the engine
depend on
.
G E N E R A L I N F O R M AT I O N
The throttle must not be opened to the full during
the new motorcycle's break-in period. Throttle
opening should be limited to less than 3/4 of its
maximum, while violent acceleration should be
avoided.
Do not maintain constant engine gear and
speed for an extended time period during any
portion of the break-in. Try to vary the throttle
position. During the period of break-in, increase
the throttle opening properly to enable break-in
fully.
When engine is running at constant low speed
(low load), parts will wear rapidly leads to bad
brake-in.
1-2
ABSORBER OIL
SUZUKI ABSORBER OIL #32 OR EQUIVALENT
BRAKE FLUID
DOT4