1976 Kawasaki KX400 Specifications and Specs
Specifications and workshop reference information for the 1976 Kawasaki KX400, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Engine Type | 2-stroke, 1-cylinder, piston valve |
| Displacement | 401 cc (24.46 cu in) |
| Bore × Stroke | 82.0 × 76.0 mm (3.23 × 2.99 in) |
| Compression Ratio | 6.5:1 |
| Maximum Power | 42 HP @ 7000 rpm |
| Maximum Torque | 4.5 kg-m @ 6000 rpm (32.5 ft-lb @ 6000 rpm) |
| Fuel Type | Petrol mix (20:1) |
| Starting System | Primary kick |
| Ignition | Electronic CDI |
| Ignition Timing | 23° BTDC @ 6000 rpm |
| Spark Plug | NGK B9EV |
Port Timing
| Inlet Open | 76° BTDC |
| Inlet Close | 76° ATDC |
| Scavenging Open | 63°30′ BBDC |
| Scavenging Close | 63°30′ ABDC |
| Exhaust Open | 90°30′ BBDC |
| Exhaust Close | 90°30′ ABDC |
Carburetion
| Carburetor | Mikuni VM36SS | Replacement Options |
| Main Jet | 145-R |
| Jet Needle | 6DH3-4 |
| Needle Jet | P-0 |
| Throttle Valve | 2.5 |
| Pilot Jet | 50 |
| Air Screw | 1 |
| Fuel Level | 2.5 mm |
| Identification | 400M |
Lubrication
| Engine Oil Type | 2-stroke engine oil |
| Transmission Oil Type | SAE 10W30 or 10W40 |
| Transmission Oil Capacity | 0.95 L (1.0 US qt) |
| Front Fork Oil Type | SAE 10W |
| Front Fork Oil Quantity | 224–232 cc (7.57–7.84 US fl oz) |
| Front Fork Oil Level | 432 mm (17.0 in) |
| Chain Oil | SAE 90 |
Wheels and Tyres
400cc Other Specs
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