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General| Valve Train | SOHC, 2 valves per cylinder |
|---|---|
| Displacement | 399 cc |
| Compression Ratio | 9.5:1 |
| Fuel System | Carburetor |
| Transmission | 5-speed |
| Final Drive | Chain |
| Front Suspension | Telescopic fork |
| Front Brake | Single disc |
| Rear Brake | Drum |
| Front Tire | 3.00-18 |
| Rear Tire | 4.00-18 |
| Carburetion | 2x Mikuni BS34 |
| Engine Type | Air-cooled, 4-stroke, parallel twin |
| Power Output | 27 kW (36 hp) @ 8, 500 rpm |
| Torque | 30 Nm |
| Rear Suspension | Swingarm with dual shock |
| Fuel Capacity | 14 L |
Locates the engine serial number for identification purposes.
Locates the frame serial number for identification purposes.
Recommends engine oil types based on ambient temperature.
Procedure for checking the engine oil level.
Guidelines for replacing the oil filter element.
Maintenance procedures for the front disc brake system.
Maintenance procedures for the rear disc brake system.
Schedule of periodic maintenance tasks.
Recommended engine oil types and grades.
Procedure for checking engine compression.
Procedure for adjusting valve clearances when engine is cold.
Procedure for setting ignition timing statically.
Procedure for setting ignition timing dynamically.
Checking timing for transistorized ignition models.
Table of key tune-up specifications for different models.
Steps for removing and installing the engine.
Step-by-step guide for cylinder head removal.
Steps for removing cylinders and pistons.
Steps for splitting the crankcases for service.
Procedures for assembling crankcases.
Detailed engine specifications for XS360 models.
Detailed engine specifications for XS400 models.
Table of torque values for engine components.
Continued engine specifications for XS400 models.
Procedure for checking engine oil pressure.
Step-by-step guide to disassembling carburetors.
Inspecting carburetor bodies, slides, needles, and jets.
Table of specifications for carburetor jets and settings.
Procedure for checking alternator output voltage.
Checking resistance and adjustment of the voltage regulator.
Adjusting the voltage regulator for proper output.
Testing rectifier diodes for proper function.
Troubleshooting ignition system failures.
Troubleshooting transistorized ignition system failures.
Diagnosing starter motor and solenoid issues.
Removing, installing, and inspecting the starter motor.
Electrical wiring diagram for XS360-C model.
Electrical wiring diagram for XS360-2D model.
Electrical wiring diagram for XS400-2E model.
Electrical wiring diagram for XS400G/SG models.
Electrical wiring diagram for XS400-D/E models.
Electrical wiring diagram for XS400F/2F models.
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