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| 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
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| Yamaha RD250 1973 |
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| Yamaha RD250 1974 |
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| Yamaha RD250 SpeedoMeter |
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| Yamaha RD250 |
Yamaha RD250 Wiring Diagram
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| Yamaha RD250 Wiring Diagram |
Yamaha RD250 Service Manuals
Yamaha RD250 Technical Specs
| More Specification | |
|---|---|
| Bike Brand | Yamaha |
| Model Name / Also called | RD250, RD250LC |
| Bike Name | Yamaha 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 |
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