2003 TRX400EX Specifications
| General Specs | |
|---|---|
| Manufacturer | Honda |
| Year | 2003 |
| Model | TRX400EX |
| Model Name | Sportrax 400EX |
| Model Code | TE23 |
| Product Code | HN1 |
| Frame VIN Location | Stamped on front of frame |
| Engine Serial Location | Stamped on bottom of left crankcase cover |
| Frame Starting Number | 478TE230*34300001 478TE232*34300001 (Canada) 478TE23U*34300001 (Australia) |
| Engine Starting Number | TE23E8000001 |
| Owner Manual | 31HN1640 |
| Service Manual | 61HN105 |
| Chassis | |
| Length | 1835 mm (72.2 in) |
| Width | 1150 mm (45.3 in) |
| Height | 1110 mm (43.7 in) |
| Seat Height | 810 mm (31.9 in) |
| Wheelbase | 1230 mm (48.4 in) |
| Ground Clearance | 110 mm (4.3 in) |
| Curb Weight | 178 kg (392.5 lb) |
| Dry Weight | 170 kg (374.9 lb) |
| Caster Angle | 6.5° |
| Trail | 28 mm (1.1 in) |
| Tire & Rim | |
| Front Tire Size (HxW-R) | 22x7-10 |
| Rear Tire Size (HxW-R) | 20x10-9 |
| Engine | |
| Engine Type | 4 Stroke Air Cooled |
| Cylinder Arrangement | Single cylinder |
| Displacement | 397 cc (24.2 ci) |
| Bore | 85 mm (3.3 in) |
| Stroke | 70 mm (2.8 in) |
| Compression Ratio | 9.1:1 |
| Cylinder Compression | 686-883 kPa (99-128 psi) |
| Starter Type | Electric |
| Oil Capacity - Total | 2.2 L (2.3 US qt; 1.9 Imp qt) |
| Oil Capacity - Oil Change | 1.8 L (1.9 US qt; 1.6 Imp qt) |
| Engine Dry Weight | 41.5 kg (91.5 lb) |
| Drive Train & Transmission | |
| Clutch Type | Manual |
| Transmission Type | 5 Speed |
| Primary Reduction | 2.826 |
| First Gear | 2.916 |
| Second Gear | 1.937 |
| Third Gear | 1.473 |
| Fourth Gear | 1.181 |
| Fifth Gear | 1.000 |
| Final Reduction | 2.533 |
| Gear Shift Pattern | 1 - N - 2 - 3 - 4 - 5 |
| Driveline | Chain |
| Drive Chain (Size/Links) | 520/94 |
| Carburetor | |
| Brand | Keihin |
| Identification Mark | QB10A |
| Type | Piston valve |
| Throttle Bore | 38 mm (1.5 in) |
| Main Jet | #148 |
| Pilot Jet/Slow Jet | #38 |
| Jet Needle Clip Position | 3rd Groove |
| Pilot Screw Adjustment | 2 1/4 Turns out |
| Float Level | 18.5 mm (0.7 in) |
| Engine Idle | 1400 RPM |
| Air Filter Type | Oiled urethane foam |
| Fuel Tank Capacity | 10 L (2.6 US gal; 2.2 Imp gal) |
| Fuel Tank Reserve | 1.6 L (0.4 US gal; 0.4 Imp gal) |
| Ignition | |
| Ignition Type | AC-CDI |
| CDI Identification Mark | CI718 (HN1) |
| Spark Plug | DPR8Z (NGK) X24GPR-U (Denso) |
| Spark Plug Gap Max | 0.6-0.7 mm (0.024-0.028 in) |
| Pulse Generator Peak Voltage | 0.7 V minimum |
| Exciter Coil Peak Voltage | 100 V minimum |
| Lighting Coil | 0.1-1 Ω |
| Primary Coil Peak Voltage | 100 V minimum |
| Initial Ignition Timing | 8.0° BTDC |
| Electrical | |
| Voltage | 12 V |
| Power Type | DC |
| Alternator Max Output | 147 W |
| Alternator Max Output RPM | 5000 RPM |
| Regulator Voltage | Less than 15.5 V |
| Brakes | |
| Front Brake Type | Dual hydraulic disc |
| Rear Brake Type | Hydraulic disc |
| Suspension | |
| Front Suspension | Double wishbone |
| Rear Suspension | Swingarm |
| Front Wheel Travel | 209 mm (8.2 in) |
| Rear Wheel Travel | 230 mm (9.1 in) |
Information on this page is provided in good faith that it is accurate, but in no way is the data guanteed to be accurate. If there are any mistakes, please contact me.