2005-2007 Yamaha YP400 Full Specifications
Get to know the 2005-2007 Yamaha YP400 in exquisite detail with our meticulously crafted motorcycle specifications tables.
Click or tap on a navigation pane below to find your way through our highly detailed, categorised 2005-2007 Yamaha YP400 specifications.
Dimensions Specifications Table
| Attribute | Value |
|---|
| Overall length | 2,230 mm |
| Overall width | 780 mm |
| Overall height | 1,380 mm |
| Wheelbase | 1,565 mm |
| Seat height | 750 mm |
| Ground clearance | 120 mm |
| Wet weight | 212 kg (fuel and fluids) |
| Maximum payload | 196 kg (rider, passenger, luggage and accessories) |
Frame Specifications Table
| Attribute | Value |
|---|
| Frame type | Aluminium die-cast and steel tube backbone |
| Rake / Caster angle | 27 ° |
| Trail length | 100 mm |
Engine Specifications Table
| Attribute | Value |
|---|
| Engine capacity / displacement | 394.9 cc |
| Engine configuration | Liquid-cooled, 4-stroke, DOHC |
| Arrangement | Forward-inclined single cylinder |
| Bore and Stroke | 83.0 mm x 73.0 mm |
| Compression ratio | 10.6 : 1 |
| Electric start | yes |
Cylinder Head Specifications Table
| Attribute | Value |
|---|
| Cylinder head warpage | 0.05 mm (service limit) |
Valves and Springs Specifications Table
| Attribute | Value |
|---|
| Intake valve clearance | 0.15 mm - 0.20 mm |
| Intake valve stem diameter | 4.975 mm - 4.990 mm |
4.945 mm (service limit) | | Intake valve stem to guide clearance | 0.010 mm - 0.037 mm |
0.080 mm (service limit) | | Intake valve head diameter | 30.9 mm - 31.1 mm |
| Intake valve seat width | 1.0 mm - 1.2 mm |
| Exhaust valve clearance | 0.25 mm - 0.30 mm |
| Exhaust valve stem diameter | 4.960 mm - 4.975 mm |
| Exhaust valve stem to guide clearance | 0.025 mm - 0.052 mm |
| Exhaust valve head diameter | 27.9 mm - 28.1 mm |
| Exhaust valve seat width | 1.0 mm - 1.2 mm |
Camshaft and Timing Specifications Table
| Attribute | Value |
|---|
| Camshaft run-out | 0.03 mm (service limit) |
Cylinder and Piston Specifications Table
| Attribute | Value |
|---|
| Cylinder taper | 0.05 mm (service limit) |
| Piston pin diameter | 19.991 mm - 20.000 mm |
19.971 mm (service limit) | | Piston pin bore diameter | 20.004 mm - 20.015 mm |
20.045 mm (service limit) | | Top piston ring end gaps | 0.20 mm - 0.35 mm |
0.50 mm (service limit) | | Second piston ring end gaps | 0.40 mm - 0.55 mm |
0.80 mm (service limit) | | Piston ring oil end gaps | 0.10 mm - 0.40 mm |
Clutch and Primary Drive Specifications Table
| Attribute | Value |
|---|
| Primary Drive type | Helical gear |
| Reduction ratio | 2.214 : 1 (31 / 14) |
| Clutch type | Dry, centrifugal automatic |
| Clutch operating system | Centrifugal automatic type |
Transmission Specifications Table
| Attribute | Value |
|---|
| Type | V- belt, automatic |
Lubrication Specifications Table
| Attribute | Value |
|---|
| System type | Wet sump |
| Oil capacity | 1.50 litres (wet fill, excludes filter) |
| Recommended oil approval rating | API service SE, SF, SG type or higher |
| Oil pump type | Trochoid |
Cooling System Specifications Specifications Table
| Attribute | Value |
|---|
| System type | Liquid-cooled |
Fuel System Specifications Table
| Attribute | Value |
|---|
| Fuel type | Unleaded gasoline only (USA) |
| Fuel tank capacity | 14 litres |
| Fuel pump type | Electrical, 5RU AISAN |
| Fuel pressure | 35.6 psi (nominal) |
Fuel Injection System Specifications Table
| Attribute | Value |
|---|
| Type | Electric |
| Idle speed | 1,300 rpm - 1,500 rpm |
| Injector type | AISAN 1100-87C00-A |
Ignition System Specifications Table
| Attribute | Value |
|---|
| Type | Transistorized coil ignition (digital) |
| Ignition timing | 1,400 rpm @ 5 ° BTDC at idle |
| Spark plug type | NGK CR7E |
| Spark plug gap | 0.7 mm - 0.8 mm |
Front Suspension and Steering Specifications Table
| Attribute | Value |
|---|
| Type | Telescopic fork, Coil spring / Oil damper |
| Front axel travel | 120 mm |
| Recommended front fork oil grade | Yamaha fork oil 10 WT |
| Oil volume | 0.298 ml (left fork dry fill) |
0.298 ml (right fork dry fill) | | Spring free length | 316.7 mm |
310.4 mm (service limit) |
Rear Suspension Specifications Table
| Attribute | Value |
|---|
| Type | Unit swing, Coil spring / Oil damper |
| Rear axel travel | 130 mm |
| Rear spring free length | 306.6 mm |
Front Brake Specifications Table
| Attribute | Value |
|---|
| Front brake type | Single-disc brake |
| Front disc diameter | 267 mm |
| Front disc thickness | 5 mm |
4.5 mm (service limit) | | Recommended front brake fluid | DOT 4 |
| Front master cylinder diameter | 14.0 mm (inner) |
| Front caliper cylinder A diameter | 30.16 mm - 33.34 mm (inner) |
Rear Brake Specifications Table
| Attribute | Value |
|---|
| Rear brake type | Single-disc brake |
| Rear disc diameter | 267 mm |
| Rear disc thickness | 5 mm |
4.5 mm (service limit) | | Recommended rear brake fluid | DOT 4 |
| Rear master cylinder diameter | 14.0 mm (inner) |
| Rear caliper cylinder A diameter | 38.1 mm (inner) |
Wheels and Tyres Specifications Table
| Attribute | Value |
|---|
| Front wheel size | 14 M/C X MT3.00 inch |
| Front tyre size | 120/80 - 14 M/C 58S - tubeless |
| Front tyre pressure | 29 psi (cold) |
| Recommended front tyre | IRC MB 67 or Dunlop D305FL |
| Rear wheel size | 13 M/C X MT4.00 inch |
| Rear tyre size | 150/70 - 13 M/C 64S |
| Rear tyre pressure | 36 psi (cold) |
| Recommended rear tyre | IRC MB 67 or Dunlop D305L |
Electrical Charging Specifications Table
| Attribute | Value |
|---|
| Battery type | GT9B-4 |
| Battery voltage rating | 12 volts DC |
| Battery capacity | 8 ampere hour (Ah) |
Electrical Equipment Specifications Table
| Attribute | Value |
|---|
| Headlight | 12V 60W/55W high/low beam |
| Recommended headlight | Halogen bulb |
| Tail / stop light | LED |
| Front turn signal light | 12V 21W/5W x 2 |
| Rear turn signal light | 12V 21W x 2 |
| Turn signal indicator | 12V 1.4W |
| Main fuse rating | 40 amps (A) |
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