| MODEL | YAMAHA FZR 400RR SP 1990 - 1991 |
| Year | 1990 - 1991 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 399 cc / 24.3 cu in |
| Bore X Stroke | 56 x 40.5 mm |
| Compression Ratio | 12.2:1 |
| Cooling System | Liquid cooled |
| Max Power | 48.6 kW / 66 hp @ 12500 rpm |
| Max Torque | 4.0 kgf-m @ 9500 rpm |
| Ignition | Analogue CDI |
| Induction | 4 x 32 mm Mikuni carburetors |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 speed |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Aluminium delta box |
| Front Suspension | 41 mm telescopic forks |
| Rear Suspension | Monoshock, preload adjustable |
| Front Brakes | 2 x 298 mm discs, 2 piston calipers |
| Rear Brakes | Single 210 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 760 mm / 30.7 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 160 kg / 352 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/60 VR17 |
| Rear Tyre | 160/60 VR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 3.9 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The FZR400RR SP was a high-spec Japanese-market sports 400 with EXUP exhaust valve tuning and very advanced suspension for its size. A road test praised its steering, brakes and flexible motor, but criticised the tall first gear, the tiring riding position in traffic and the switchgear.
