| Engine | Yamaha FZ1 | Yamaha FZ6-ST |
|---|---|---|
| Engine code | 5VX8 | |
| Displacement | 998 cc | 600 cc |
| Max power | 143 hp (@10 000 RPM) | 98 hp (@12 000 RPM) |
| Max torque | 77 lb ft (@7 500 RPM) | 46 lb ft (@10 000 RPM) |
| Redline | 11 500 RPM | 14 000 RPM |
| Idling speed | 1 050 RPM | 1 250 RPM |
| Management | Carburetor | Fuel Injection |
| Layout | DOHC Inline-4 | DOHC Inline-4 |
| Compression | 11.40:1 | 12.20:1 |
| Oil capacity | 2.84 quart | 2.37 quart |
| Oil type | YAMALUBE 4, 10W-30 | 10W40, Yamalube 10W40, Shell Rotella 10W40 |
| Spark plug type | NGK CR9E, DENSO U27ESR-N | NGK CR9EK |
| Cooling | Liquid | Liquid |
| Valves | 20 | 16 |
| Bore | 74.0 mm | 65.5 mm |
| Stroke | 58.0 mm | 44.5 mm |
| Throttle bore | 37.0 mm | |
| Weight to power | 3.56 lbs/hp | 4.66 lbs/hp |
| Power to weight | 701 hp/2500lbs | 536 hp/2500lbs |
| Battery type | GT14B-4, 12V 12Ah | YT12B-BS |
| Gearbox | Yamaha FZ1 | Yamaha FZ6-ST |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | DID 50V4 | |
| Gears count | 6 | 6 |
| Primary ratio | 1.581 | 1.955 |
| Final drive | 2.75 | 2.875 |
| 1. gear | 2.5 (78 mph) | 2.846 (65 mph) |
| 2. gear | 1.842 (106 mph) | 1.947 (94 mph) |
| 3. gear | 1.5 (130 mph) | 1.556 (118 mph) |
| 4. gear | 1.333 (147 mph) | 1.333 (138 mph) |
| 5. gear | 1.2 (163 mph) | 1.19 (154 mph) |
| 6. gear | 1.115 (175 mph) | 1.083 (170 mph) |
| Chasis | Yamaha FZ1 | Yamaha FZ6-ST |
|---|---|---|
| Frame type | Double cradle steel | Diamond |
| Front susp. | 43mm fork, 5.51 in travel | Telescopic fork, 5.12 in travel |
| Rear susp. | Swingarm, 5.31 in travel | Monoshock, coil spring/gas oil damper |