The following technical specification applies for
1997 Honda XR400R motocross series. Herein you will find detail information about the engine system, dimension, frame, drive train and electrical system.
XR400R has a gasoline, air cooled 4-stroke SOHC engine with 397 cm² displacement. More information about this motocross, find it here.
DIMENSION
| Overall length | 2,130 mm (83.9 in) |
| Overall width | 840 mm (33.1 in) |
| Overall height | 1,240 mm (48.8 in) |
| Wheelbase | 1,425 mm (56.1 in) |
| Ground clearance | 310 mm (12.2 in) |
| Seat height | 930 mm (36.6 in) |
| Curb weight | 125 kg (276 lbs) |
| Dry weight | 116.5 kg (257 lbs) |
| Max. weight capacity | 100 kg (220 lbs) |
FRAME
| Frame type | Semi-double cradle |
| Front suspension | Telescopic fork |
| Front wheel travel | 280 mm (11.0 in) |
| Rear suspension | Swingarm |
| Rear wheel travel | 300 mm (11.8 in) |
| Front tire size | 80/100 – 21 51M |
| Rear tire size | 110/100 – 18 64M |
| Tire brand (Dunlop) FR/RR | K490G/K695 |
| Front brake | Hydraulic single disc |
| Rear brake | Hydraulic single disc |
| Fuel capacity | 9.5 lt (2.5 US gal) |
| Fuel reserve capacity | 1.5 lt (0.4 US gal) |
| Caster angle | 25º15′ |
| Trail length | 94 mm (3.7 in) |
| Fork oil capacity | 280 cc (9.4 US oz) |
ENGINE
| Cylinder arrangement | Gasoline, air cooled 4-stroke SOHC |
| Bore x stroke | 85.0 x 70.0 mm ( 3.35 x 2.76 in) |
| Displacement | 397 cm² (24.2 cu in) |
| Compression ratio | 9.3 : 1 |
| Valve train | Silent multi-link chain driven SOHC with rocker arms |
| Intake valve opens at 1 mm lift | 11º BTDC |
| Intake valve closes at 1 mm lift | 41.5º ABDC |
| Exhaust valve opens at 1 mm lift | 40º BBDC |
| Exhaust valve closes at 1 mm lift | 10º ATDC |
| Lubrication system | Forced pressure (dry sump) |
| Oil pump type | Trochoid |
| Cooling system | Air cooled |
| Air filtration | Oiled polyurethane foam |
| Engine weight | 38.5 kg (85 lbs) |
| Carburetor type | Piston valve |
| Throttle bore | 38 mm (1.5 in) |
DRIVE TRAIN
| Clutch system | Multi-plate, wet |
| Clutch operation system | Cable operating |
| Transmission | 5 speeds |
| Primary reduction | 2.826 (65/23) |
| Final reduction | 3.000 (45/15) |
| Gear ratio: |
|
| 1st | 2.615 (34/13) |
| 2nd | 1.842 (35/19) |
| 3rd | 1.400 (28/20) |
| 4th | 1.120 (28/25) |
| 5th | 0.926 (25/27) |
| Gearshift pattern | 1 – N – 2 – 3 – 4 – 5 |
| Ignition | CDI |
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