Spec Sheet
The information below is specific to the Yamaha - 250 SR 250 SE, 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:
250
Service
Chain Freeplay mm:
25-35mm (1.0-1.4")
Engine Oil Grade SAE:
20w40
Engine Oil quantity (litres):
1.3
Engine Oil quantity with filter (litres):
1.6
Fork oil grade:
10 wt
Front Fork Oil cc (left leg):
168
Front Fork Oil cc (right leg):
168
Spark Plugs Gap (mm):
0.7-0.8mm (0.028-0.031in) (14.5ftlb torque)
Tyre Pressure Back Bar / psi:
28psi
Tyre Pressure Back - Pillion Bar / psi:
32psi
Tyre Pressure Front Bar / psi:
26psi
Tyre Pressure Front - Pillion Bar / psi:
28psi
Valve Clearance Cold - Exhaust:
0.12-0.17
Valve Clearance Cold - Inlet:
0.05-0.10
Brakes
Front:
Drum
Rear:
Drum
Dimensions
Dry Weight:
121 kg
Fuel Capacity:
10.7 litres/2.8 gal.
Ground Clearance:
145mm
Height:
1125mm
Length:
2005mm
Reserve Fuel Capacity:
1.3 litres/0.3 gal
Trail:
121 mm
Wet Weight:
130 kg
Wheelbase:
1335mm
Width:
815mm
Electrics
Voltage:
12v
Battery:
12N-12A-4A
Bulb-Headlight:
12v 35/50w sealed beam
Ignition:
Full transistor ignition
Spark Plugs:
NGK BP7ES or N.Denso W22EP
Engine
Type:
Air Cooled 4 Stroke SOHC Straight Single
Bore x Stroke:
73.5 x 56.5 mm
Carburation:
Mikuni BS34
Compression Ratio:
9.2:1
Displacement:
240 cc
Lubrication System:
No. of Valves:
2
Starting:
electric
Transmission
Chain Number of Links:
102
Clutch Type:
Wet multi plate
Final Drive:
Chain
Gearchange Pattern:
1 N 2 3 4 5
Gear Ratio 1st:
37/14 (2.642)
Gear Ratio 2nd:
32/19 (1.684)
Gear Ratio 3rd:
29/23 (1.260)
Gear Ratio 4th:
26/26 (1.000)
Gear Ratio 5th:
23/28 (0.821)
Gear Ratio 6th:
N/A
Primary Drive:
Gear
Primary Drive Ratio:
72/23 (3.130)
Sprocket front:
16
Sprocket rear:
46
Transmission:
5 speed
Misc.
Motorcycle Style:
Classic
Power
Max Power Output:
17.00 HP (12.4 kW)) @ 7400 RPM
Top Speed:
71.5 mph
Suspension
Front:
telescopic fork oil dampened
Rear:
twin Shock
Tyres
Front:
3.00-18-PR Tubed
Rear:
120/90-16 63p 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.