Yamaha XJ 400Z-E (1983) vs Yamaha RD 350LC / RZ 350LC YPVS (1983) vs Yamaha XVZ 1300 Royal Star Venture (2007-08) vs Yamaha XS 400 (1977-78) vs Yamaha RD 125 (1977) vs Yamaha XT660R (2007) vs Yamaha XVS 1300 V-Star (2007-08) vs Yamaha XS 750 Touring (1977)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha | Yamaha | Yamaha | Yamaha | Yamaha | Yamaha |
| Model: | XJ 400Z-E | RD 350LC / RZ 350LC YPVS | XVZ 1300 Royal Star Venture | XS 400 | RD 125 | XT660R | XVS 1300 V-Star | XS 750 Touring |
| Years: | 1983 | 1983 | 2007-08 | 1977-78 | 1977 | 2007 | 2007-08 | 1977 |
| Engine: | Four stroke, transverse four cylinder, DOHC, four valve per cylinder | Two stroke, parallel twin cylinder | Four stroke, 70°V-four cylinder, DOHC, 4 valve per cylinder | Four stroke, 180° parallel twin, SOHC, 2 valves per cylinder | Two stroke, parallel twin | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, 60° V-twin cylinder SOHC, 4-valve | Four stroke, transverse three cylinder, DOHC, 2 valves per cylinder. |
| Capacity: | 399 cc | 347 cc / 21.1 cu-in | 1294 cc / 78.9 cu-in | 392 cc / 23.9 cu-in | 124 cc / 7.6 cu-in | 659 cc/ 40.2 cu-in | 1304 cc / 80 cu-in | 747 cc / 45.6 cu in |
| Bore x Stroke: | 54 х 53.6 mm | 64 х 54 mm | 79 х 66 mm | 69.0 x 52.4 mm | 43 х 43 mm | 100 x 84 mm | 100 x 83 mm | 68 x 68.6 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled | Air cooled | Air cooled | Liquid cooled | Liquid cooled, | Air cooled |
| Compression Ratio: | 10.5:1 | 6.2 :1 | 10.0:1 | 9.2:1 | 6.8:1 | 10.0: 1 | 9.5:1 | 8.5:1 |
| Induction: | Carburator | 2x 26mm Mikuni slide-needle carburetor | 4x 32mm Mikuni Constant-Velocity | 2x Mikuni BS32 carburetors | 2x 18mm Teikei carburetors | Fuel injection, 44 mm throttle body | Dual bore 40mm Fuel Injection | 3 x 34mm Mikuni carburetors |
| Ignition: | Transistorized CDI | Flywheel magneto CDI | Digital TCI | Battery ignition - With contact breaker points | Battery coil | TCI | Digital TCI | Battery and coil |
| Starting: | Electric | Kick | Electric | Electric & kick | Kick | Electric | Electric | Electric |
| Transmission: | 6 speed | 6 Speed | 5 Speed | 6 Speed | 5 Speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Shaft | Chain | Chain | Chain | Belt | Shaft |
| Front Suspension: | Telescopic forks | 32mm stanchion tube forks | Air assisted telescopic fork | Telescopic fork | 28 mm telescopic forks | 43 mm Telescopic forks, | 41mm telescopic fork | Telescopic forks, 36 mm |
| Rear Suspension: | Monocross, link type | Single shock cantilever 5-way adjustable spring preload | Single shock, link-type w/air assist | Dual shocks swing arm, preload adjustable | Dual rear shock pre-load adjustable | Oscillating arm standard Monocross. 200mm wheel travel | Adjustable link Monocross | Dual shocks swing arm, preload adjustable |
| Front Brakes: | 2x discs | 2x 267mm disc 1 piston caliper | 2x 298mm discs 4 piston calipers | Single disc | Single240mm disc | Single 298mm disc 2 piston caliper | 2x 298mm discs | 2 x 267mm Discs |
| Rear Brakes: | Single disc | Drum | Single 320mm disc 1 piston caliper | Drum | 130 mm Drum | Single 245mm disc 1 piston caliper | Single 282mm disc | Single 267mm disc |
| Front Tyre: | 90/90-18 | 3.00-18 | 150/80-16 | 3.00-18 | 2.75-18 | 90/90- 21 | 130/90-16 | 3.25-19 |
| Rear Tyre: | 110/90-18 | 3.50-18 | 150/90-15 | 3.50-18 | 3.00-18 | 130/80–17 | 170/70-16 | 4.00-18 |
| Fuel Capacity: | 19 Litres / 5.0 US gal | 16.5 Liters / 4.3 US gal | 22.5 Litres / 5.9 US gal | 14 Litres / 3.7 US gal | 11.5 Litres / 3.04 US gal | 15 Litres / 3.3 US gal | 18.5 Liters / 4.8 US gal | 15 Litres / 4.0 US gal |