Yamaha BR250F Service Manual page 135

GENERAL SPECIFICATIONS
SPECIFICATIONS
Model BR250T J
Model Code Number: 8Y1
Frame Starting Number:
8Y1-000101
Engine Starting Number: 8Y1-000101
Dimensions:
Overall Length 2,925 mm (115.2 in)
Overall Width
950 mm ( 37.4 in)
Overall Height 1,115mm( 43.9 in)
Weight:
With Oil and Full Fuel Tank 184 kg (406 Ib)
Engine:
Engine Type Two-stroke
Cooling System
Axial fan air cooled
Cylinder Arrangement Forward-incline, single cylinder
Displacement 246 cm ' (15.0 cu.in)
Bore x Stroke
70 x 64 mm (2.76 x 2.52 in)
Compression Ratio 6.1 : 1
Start i ng System
Recoil hand starter
Lubrication System:
YAMAHA Autolube system
Engine Oil:
Type
Y AMALUBE 2-cycle oil
Tank Capacity
1.75 L (1.54 Imp qt, 1.85 US qt)
- - ~ - - _ . _ - - - - - _
..
- --
Transmission Oil:
Type
Gear oil API "GL-3" (SAE # 75'"" # 80)
I
Capacity
0.20 L (0.18 Imp qt, 0.21 US qt)
Fuel:
Type
Regular gasoline
Tank Capacity
15.0 L (3.3 Imp gal, 4.0 US gal)
Carburetor:
I
Type
I
BD32-28
Manufacturer
I
KEIHIN
Spark Plug:
i
I
Type
i
BR8HS
Manufacturer
I
NGK
Gap
0.6'"" 0.7 mm (0.024'"" 0.028 in)
Transmission:
Primary Reduction System
V-Belt
Primary Reduction Ratio
3.5 : 1 "" 1 : 1
Clutch type
Automatic centrifugal engagement
Secondary Reduction System
Chain (#40K-1)
Secondary Reduction Ratio 24/11 (2.18)
Reverse System
No
Chassis:
Frame Type
Monocock (Steel)
Caster 25°
Ski Stance
750 mm (29.5 in)
-22-