Honda XR400R (2004)

The Honda XR400R is a 2004 motorcycle that features a four-stroke, single-cylinder engine with a capacity of 397cc. It has a bore of 85mm and a stroke of 70mm, and uses a silent multi-link chain driven SOHC with rocker arms, as well as a 4 valve design. The cooling system is air-cooled, and the compression ratio is 9.3:1. The bike uses a carburetor with a piston valve and throttle bore of 38mm. The lubrication system is forced pressure with a trochoid oil pump type, and the ignition is solid state CDI with electronic advance. The bike is started with a kick, and has a maximum power output of 34hp at 6500rpm. The clutch is multi-plate and wet, and the transmission is a 5-speed with chain final drive. The front suspension features a 43mm leading-axle Showa cartridge fork, and the rear suspension uses a Pro-Link Showa single shock. The front brakes are a single 256mm disc with 2 piston calipers, while the rear brakes are a single 220mm disc with 1 piston caliper. The bike has a caster angle of 25 degrees and a trail of 94mm. Its dimensions are 2130mm in length, 840mm in width, and 1240mm in height, with a wheelbase of 1425mm and a seat height of 930mm. The dry weight is 116.5kg, and the wet weight is 125kg. The fuel capacity is 9.5 litres, and the bike has a top speed of 137km/h with a standing 1/4 mile time of 14.8 seconds at 132km/h. It was reviewed positively by Tutomoto in 1996.


Technical specifications:

Make Model: Honda XR 400R

Year: 2004


Engine: Four stroke, single cylinder, Silent multi-link chain driven SOHC with rocker arms, 4 valve
Capacity: 397 cc / 24.2 cu-in
Bore x Stroke: 85 x 70 mm
Cooling System: Air cooled
Compression Ratio: 9.3:1
Induction: Carburettor (Carburetor) type: Piston valve Throttle Bore: 38 mm (1.5 in)
Lubrication: Forced pressure (dry sump)
Oil Pump Type: Trochoid
Ignition: Solid state CDI with electronic advance
Starting: Kick
Max Power: 34 hp / 24.8 kW @ 65000 rpm
Clutch: Multi-plate, wet
Transmission: 5 Speed
Final Drive: Chain
Primary Reduction: 2.826 (65/23)

Final Reduction: 3.000 (45/15) *Note – Gearing varies from country to country. Some have 40/15 as standard.
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: Left operated return system 1 – N – 2 – 3 – 4 – 5
Frame: Semi-double cradle
Front Suspension: 43 mm leading-axle Showa cartridge fork with 18-position compression and 12-position rebound damping adjustability
Front Wheel Travel: 280 mm / 11.0 in
Rear Suspension: Pro-Link Showa single shock with spring preload, 16-position compression and 16-position rebound damping adjustability.
Rear Wheel Travel: 300 mm / 11.8 in
Front Brakes: Single 256 mm disc 2 piston caliper
Rear Brakes: Single 220 mm disc 1 piston caliper
Front Tyre: 80/100-21
Rear Tyre: 110/100-18
Caster Angle: 25 degrees
Trail: 94 mm / 3.7 in
Dimensions: Length 2130 mm / 83.9 in Width 840 mm / 33.1 in Height 1240 mm / 48.8 in
Wheelbase: 1425 mm / 56.1 in
Seat Height: 930 mm / 36.6 in
Ground Clearance: 310 mm / 12.2 in
Dry Weight: 116.5 kg / 257 lbs
Wet Weight: 125 kg / 276 lbs

Fuel Capacity: 9.5 Litres / 2.5 US gal
Standing 1/4 Mile: 14.8 sec / 132 km/h
Top Speed: 137 km/h / 85 mph
Road Test: Tutomoto 1996

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