8-1
EAU01038
SPECIFICATIONS
8
Specifications
Model DT125R
Dimensions
Overall length 2,170 mm
2,235 mm (N, S, SF, CH, A only)
Overall width 830 mm
Overall height 1,255 mm
Seat height 885 mm
Wheel base 1,415 mm
Ground clearance 315 mm
Minimum turning radius 2,100 mm
Basic weight (with oil and
full fuel tank)127 kg
129 kg (CH, A only)
Engine
Engine type Liquid-cooled 2-stroke
Cylinder arrangement Forward-inclined single
cylinder
Displacement 124 cm
3
Bore ×Stroke 56.0 ×50.7 mm Compression ratio 6.7:1
Starting system Kickstarter
Lubrication system Separate lubrication
(Yamaha Autolube)
Engine oil (2-cycle)
Type 2-stroke engine oil
Capacity
Total amount 1.2 L
Transmission oil
Type SAE 10W30 type SE motor oil
Capacity
Periodic oil change 0.75 L
Total amount 0.8 L
Cooling system capacity
(total amount)0.92 L
Air filterWet type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 10 L
Reserve amount 1.8 L
3MB-9-E8 6/13/01 10:55 AM Page 88
8-2
SPECIFICATIONS
8
Carburetor
Manufacturer MIKUNI
Model × quantity TM28SS × 1
Spark plug
Manufacturer/model NGK / BR9ES
NGK / BR8ES (CH, A only)
Spark plug gap 0.7–0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Helical gear
Primary reduction ratio 71/22 (3.227)
Secondary reduction system Chain drive
Secondary reduction ratio 3.563
Number of drive chain
sprocket teeth (rear/front) 57/16
Transmission type Constant mesh 6-speed
Operation Left foot operation
Gear ratio 1st 2.833
2nd 1.875
3rd 1.412
4th 1.143
5th 0.957
6th 0.818Chassis
Frame type Semi double cradle
Caster angle 27°30’
Trail 113 mm
Tire
Front
Type With tube
Size 2.75-21 45P
Manufacturer/ BRIDGESTONE / TW25
model
Rear
Type With tube
Size 4.10-18 59P
Manufacturer/ BRIDGESTONE / TW44
model
Maximum load* 180 kg
178 kg (CH, A only)
Air pressure (cold tire)
up to 90 kg load*
Front125 kPa (1.25 kgf/cm
2, 1.25 bar)
Rear150 kPa (1.50 kgf/cm2, 1.50 bar)
3MB-9-E8 6/13/01 10:55 AM Page 89
