Spec Sheet
The information below is specific to the Suzuki - GN 125 02, showing anything for service information to the amount of fork oil or even the tyre pressures. If you would like to contribute any missing information, please use the edit link below.
Back.Bike Info
CC:
125
Chassis info:
Located on the left side of the crankcase
Service
Coolant:
air-cooled
Engine Oil Classification API:
API SF or SG with JASO MA
Engine Oil Grade SAE:
10W/40
Engine Oil quantity (litres):
850ml
Engine Oil quantity with filter (litres):
950ml
Fork oil grade:
10w
Front Fork Oil cc (left leg):
168 ± 3ml
Front Fork Oil cc (right leg):
168 ± 3ml
Idle Speed (rpm):
1500 ± 100 r/min
Spark Plugs Gap (mm):
0.7 - 0.8 mm
Tyre Pressure Back Bar / psi:
2.00 / 29.01
Tyre Pressure Back - Pillion Bar / psi:
2.25 / 32,63
Tyre Pressure Front Bar / psi:
1.75 / 25.38
Tyre Pressure Front - Pillion Bar / psi:
1.75 / 25.38
Valve Adjustment Interval:
Inspect initial 1000 km and every 5000 km
Valve Clearance Cold - Exhaust:
0.13 - 0.18 mm
Valve Clearance Cold - Inlet:
0.04 - 0.07 mm
Brakes
Front:
Disc
Rear:
Drum
Brake fluid:
Dot 4
Front Disc Size:
3.8mm - 4.2mm
Front Drum Size:
3.0mm limit
Front-Pistons-per-caliper:
1
Rear Drum Size:
130.7mm limit
Dimensions
Dry Weight:
105 kg
Fuel Capacity:
10L Total
Ground Clearance:
175 mm
Height:
1 100 mm
Length:
2 000 mm
Reserve Fuel Capacity:
2L
Trail:
105 mm
Wet Weight:
113 kg
Wheelbase:
1 300 mm
Width:
815 mm
Electrics
Voltage:
12v
Battery:
12N7-4A
Bulb-Headlight:
12V, 35W/35W
Headlight Fuse:
Not covered
Ignition:
CDI
Ignition Timing:
13° B.T.D.C below 2000 r/min
Main Fuse:
15A
Spark Plugs:
NGK CR8E
Tail Light Fuse:
Not covered
Engine
Type:
Air Cooled 4 Stroke SOHC Single
Air Filtration:
oiled foam
Bore x Stroke:
57 x 48.8 mm
Carburation:
MIKUNI BS26
Carburation Idle Jet:
# 12.5
Carburation Main Jet:
# 110
Compression Ratio:
9.2 : 1
Displacement:
124 cc
Lubrication System:
Wet sump
No. of Valves:
2
Pilot Screw Setting:
Pre set: 2,5/8 turns
Red line RPM:
10000
Starting:
Electric
Transmission
Chain Number of Links:
116
Chain type:
KMC428HG
Clutch Type:
Wet multi-plate
Gear Ratio 1st:
3.00
Gear Ratio 2nd:
1.857
Gear Ratio 3rd:
1.368
Gear Ratio 4th:
1.143
Gear Ratio 5th:
0.957
Primary Drive Ratio:
3.470
Sprocket front:
14
Sprocket rear:
43
Misc.
Frame:
steel down tube
Motorcycle Style:
CRUISER
Suspension
Front:
Telescopic, coil spring, oil damped
Rear:
Swingarm type, 5 level adjustable coil spring oil damped
Tyres
Front:
2.75-18 (42P) Tubed
Rear:
3.50-16 (55P) Tubed
Add information to the model
All information presented on the website is given to the best of our knowledge at the given time. All information is intended to only as a guide. A major Japanese manufacturer's quote:
We reserve the right to vary our specification with or without notice, and as such time and in such manner as we think fit.