1978 Suzuki PE400
Specifications and workshop reference information for the 1978 Suzuki PE400, 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 | Air-cooled 2-stroke single-cylinder piston port |
| Displacement | 396 cc |
| Bore × Stroke | 82.0 × 75.0 mm |
| Compression Ratio | 6.7:1 |
| Maximum Power | 38 hp |
| Maximum Torque | 44 Nm |
| Carburetor | Mikuni VM36SS |
| Lubrication | Suzuki CCI oil injection |
| Fuel Mix Ratio | |
| Ignition | CDI magneto |
| Spark Plug | NGK B8ES |
| Spark Plug Gap | 0.6 – 0.7 mm |
Transmission
| Transmission Type | 5-speed manual |
| Clutch | Wet multi-plate |
| Primary Reduction | 3.000 |
| Final Reduction | 3.692 |
| Overall Reduction | 11.08 |
Dimensions
| Overall Length | 2200 mm |
| Overall Width | 910 mm |
| Overall Height | 1230 mm |
| Wheelbase | 1460 mm |
| Ground Clearance | 300 mm |
| Fuel Tank Capacity | 11 L |
Chassis
| Frame Type | Steel single cradle |
| Caster Angle | 29° |
| Trail | 120 mm |
| Front Suspension | Telescopic forks |
| Rear Suspension | Full floater monoshock |
| Front Suspension Travel | 220 mm |
| Rear Suspension Travel | 230 mm |
Brakes & Wheels
| Front Tire | 3.00-21 |
| Rear Tire | 5.10-18 |
| Front Brake | Drum brake |
| Rear Brake | Drum brake |
400cc Other Specs
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