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Yamaha RD250 Specifications, Review, Top Speed, Picture, Engine, Parts & History

Bike Info BD 7 min read

    Yamaha RD 250
    Yamaha RD 250

    Yamaha RD250 Carburetor Information

    • Idle Speed: 1,200 - 1,300 RPM
    • Main Jet Size: #140
    • Pilot Jet Size: #25
    • Pilot Screw Setting: 1.5 turns out
    • Starter Jet Size: #40
    • Carburetor Cut Away: 2.0
    • Float Height Level: 21 mm
    • Carburetor Fuel Level: 3 mm

    Yamaha RD250 Cables and Levers Adjustments

    • Throttle Cable Free Play: 2 - 5 mm
    • Clutch Lever Free Play: 10 - 15 mm
    • Front Brake Lever Free Play: 10 - 20 mm
    • Rear Brake Lever Free Play: 20 - 30 mm
    • Chain Free Play: 25 - 35 mm

    Yamaha RD250 Electrical Information

    • Specified Fuse: 20A
    • Generator System: 12V AC generator
    • Charging Rate: 14V at 5,000 RPM
    • Point Gap: 0.3 - 0.4 mm
    • Spark Plug Gap: 0.8 mm

    Yamaha RD250 Tyre Pressure

    • Front tire: 23 psi
    • Rear tire: 29 psi

    Yamaha RD250 Fuel & Oil Mixture System

    • For 1 liter = 50 ml 2T Oil (50:1)

    Yamaha RD250 Photos

    Yamaha RD250 1973
    Yamaha RD250 1973

    Yamaha RD250 1974
    Yamaha RD250 1974

    Yamaha RD250 1975

    Yamaha RD250 SpeedoMeter
    Yamaha RD250 SpeedoMeter

    Yamaha RD250
    Yamaha RD250

    Yamaha RD250 Wiring Diagram

    Yamaha RD250 Wiring Diagram
    Yamaha RD250 Wiring Diagram

    Yamaha RD250 Service Manuals

    Yamaha RD250 Manuals PDF

    Yamaha RD250 Technical Specs

    More Specification
    Bike Brand Yamaha
    Model Name / Also called RD250, RD250LC
    Bike NameYamaha RD250
    Year / Production 1973 - 1975
    Bike Type /  Class Classic
    Predecessor Yamaha RD60
    Yamaha RD 135
    Successor Yamaha RD350
    Brand Origin Japan
    Engine
    Engine Type 250cc, Two-cylinder parallel twin, 2 -stroke
    Displacement (cc) 247 cc / 15.0 cu-in
    Maximum Power 30 hp / 22.3 kW @ 7500 rpm
    Maximum Torque 21 lb-ft / 2.9 kgf-m @ 7000 rpm
    Ignition Battery and coil with breaker points
    Bore & Stroke 54.0mm x 54.0mm
    Starting kick
    Cooling System Air-cooled
    Compression Ratio 7.5:1
    Brakes
    Brake Types  Drum & Disc
    Front Brake Single disc
    Rear Brake Drum
    Wheels and Tyres
    Front Tire Size 3.00-18
    Rear Tire Size 3.50-18
    Dimension and Weight
    Seat height
    Overall height 1085 mm
    Overall length 1995 mm
    Overall width 830 mm
    Ground Clearance 150 mm
    Dry weight 152 kg
    Curb Weight 75.0 kg
    Mileage and Performance
    0-60 Kmph 6.2 sec
    0-100 Kmph 6.6 sec
    Top Speed 101 mph (163 km/h)
    Fuel Capacity 16.5 Liters
    Fuel economy
    Consumption Average 22-32 kmpl (approximate).
    Fuel Type Petrol
    Fuel Supply Carburetor
    Recommended Oil Yamalube 10w-40
    Engine Oil (Refill)
    Engine Oil (Element Replacement)
    Features Value and Safety
    Speedometer Analog
    Tachometer Analog
    Tripmeter Analog
    Electricals and Transmission
    Number of Used Plugs 1
    Air Filter K&N YA-0700 `73-75
    Spark Plug NGK B8HS 73-75
    Battery YUASA 12N5-5A-3B 73-75
    Voltage 12v
    Head Light
    Tail Light
    Gear Box 6 Speed
    Final Drive Chain
    Clutch Wet, multi-plate
    Chain Size 530x92
    Chassis and Suspension
    Front Suspension 14T
    Rear Suspension 40T
    Frame type -
    More Specification
    Bike Colours Blue, Brown, Gold, White, Black, Yellow Etc.
    No. of Cylinders 2 cylinder

    Yamaha RD250 Acceleration Video

    Bike Info BD
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