The Suzuki GSX 400F Katana is a motorcycle model produced in 1983-84. It features a four stroke, transverse four cylinder, DOHC engine with 4 valves per cylinder and a capacity of 398 cc. The compression ratio is 10.2:1 and it has a cooling system of air cooled lubrication. The bike is powered by 4 Mikuni BS26SS carburetors and it has fully transistorised ignition. The electric starting is backed up by a 12V, 12Ah battery, and the spark plug is NGK D8EA or NIPPON DENSO X24ES-U.
The GSX 400F Katana reaches a maximum power of 30.8 kW / 41.3 hp at 10500 rpm with a maximum torque of 30.2 Nm / 3.1 kgf-m / 22.3 lb-ft at 8500 rpm. The bike has a wet, multiplate clutch and a 6-speed transmission. The final drive is a chain, DAIDO DID50UB, with 104 links. The motorcycle has a telescopic fork, oil-dampened suspension in the front and a swingarm, dual shocks, oil-dampened, spring 5-way adjustable suspension in the rear.
The GSX 400F Katana’s front brakes consist of 2 discs while the rear has a single disc. The front and rear tires are respectively 3.25-S19 4PR and 3.75-S18 4PR. It has a steering angle of 42 degrees (left and right), a caster of 63 degrees, and a trail of 100 mm / 3.9 in. The motorcycle is 2105 mm / 82.9 in in length, 750 mm / 29.5 in in width, and 1135 mm / 44.7 in in height. The wheelbase is 1415 mm / 55.7 in with a ground clearance of 165 mm / 6.5 in. The seat height is 780 mm / 30.7 in with a turning radius of 2.3 m / 7.5 ft. The bike weighs in at 179 kg / 395 lbs when dry.
Technical specifications:
Make Model: Suzuki GSX 400F Katana
| Year | 1983-84 |
|---|---|
| Engine | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity | 398 cc / 24.3 cu in |
| Bore x Stroke | 53 x 45.2 mm |
| Compression Ratio | 10.2:1 |
| Cooling System | Air cooled |
| Lubrication System | Wet sump |
| Induction | 4 x Mikuni BS26SS carburetors |
| Ignition | Fully transistorised |
| Starting | Electric |
| Battery | 12V, 12Ah |
| Spark Plug | NGK D8EA, NIPPON DENSO X24ES-U |
| Max Power | 30.8 kW / 41.3 hp @ 10500 rpm |
| Max Torque | 30.2 Nm / 3.1 kgf-m / 22.3 lb-ft @ 8500 rpm |
| Clutch | Wet, multiplate |
| Transmission | 6 Speed |
| Final Drive | Chain, DAIDO DID50UB, 104 links |
| Primary Reduction | 2.300 (92/40) |
| Final Reduction | 2.866 (43/15) |
| Gear Ratios | 1st 3.166 (38/12) / 2nd 2.125 (34/16) / 3rd 1.631 (31/19) / 4th 1.333 (28/21) / 5th 1.173 (27/23) / 6th 1.083 (26/24) |
| Front Suspension | Telescopic fork, oil dampened |
| Front Wheel Travel | 150 mm / 5.9 in |
| Rear Suspension | Swingarm, dual shocks, oil dampened, spring 5-way adjustable |
| Rear Wheel Travel | 107 mm / 4.2 in |
| Front Brakes | 2 x Discs |
| Rear Brakes | Single disc |
| Front Tyre | 3.25-S19 4PR |
| Rear Tyre | 3.75-S18 4PR |
| Steering Angle | 42~A degrees (left and right) |
| Caster | 63~A degrees |
| Trail | 100 mm / 3.9 in |
| Dimensions | Length: 2105 mm / 82.9 inWidth: 750 mm / 29.5 in Height: 1135 mm / 44.7 in |
| Wheelbase | 1415 mm / 55.7 in |
| Ground Clearance | 165 mm / 6.5 in |
| Seat Height | 780 mm / 30.7 in |
| Turning Radius | 2.3 m / 7.5 ft |
| Dry Weight | 179 kg / 395 lbs |
