Yamaha FZX 250 Zeal (1991-99) vs Suzuki GS 425 (1978)
Comparison technical specifications
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| Make: | Yamaha | Suzuki |
| Model: | FZX 250 Zeal | GS 425 |
| Years: | 1991-99 | 1978 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder, | Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder. |
| Capacity: | 249 cc / 15.2 cu-in | 423 cc / 25.8 cu in |
| Bore x Stroke: | 48 х 34.5 mm | 67 x 60 mm |
| Cooling System: | Liquid-cooled | Air cooled |
| Compression Ratio: | 9.1:1 | |
| Induction: | 2 x 34 mm Mikuni carburetors | |
| Starting: | Electric | Electric and kick |
| Max power: | 40 hp / 29.8 lb-ft @ 12000 rpm | 29.8 kW / 40 hp @ 7000 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic forks | Telescopic fork |
| Rear Suspension: | Dual shocks | Twin shocks, coil spring over |
| Front Brakes: | Single disc | Single disc, 11in |
| Rear Brakes: | Single disc | Drum, 7 in |
| Front Tyre: | 110/70-17 | 3.00-18 |
| Rear Tyre: | 140/70-17 | 3.75-18 |
| Seat Height: | 735 mm / 28.9 in | 787 mm / 31 in |
| Dry Weight: | 145 kg / 349.6 lbs | 173 kg / 382 lbs |
| Fuel Capacity: | 15 liters / 3.3 gal | 15 Litres / 4.0 US gal / 3.3 Imp gal |