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Yamaha SRV 250S (1995-96) vs Yamaha TZR 250R (1991) vs Yamaha XJ 400S Diversion (1991-) vs Yamaha XJ 650 Turbo (1985-86)

Comparison technical specifications


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1995 Yamaha SRV 250S
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1991 Yamaha TZR 250R
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1991 Yamaha XJ 400S Diversion
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1985 Yamaha XJ 650 Turbo
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Make: Yamaha Yamaha Yamaha Yamaha
Model: SRV 250S TZR 250R XJ 400S Diversion XJ 650 Turbo
Years: 1995-96 1991 1991- 1985-86
Engine: Four stroke, V twin, SOHC Two stroke, 90° V-Twin cylinder, read valve induction Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. Four stroke transverse four cylinder. turbocharged. DOHC, 2 valves per cylinder,
Capacity: 248 cc / 15.0 cu-in 249.7 cc / 15.2 cu-in 399 cc / 24.2 cu-in 653 cc / 39.8 cu-in
Cooling System: Air cooled Liquid cooled Air cooled Air-cooled
Bore x Stroke: 49 x 66 mm 56 x 50.7 mm 55 х 47 mm 63 х 52.4 mm
Compression Ratio: 9.8 : 1 7.5:1 10.7:1 8.2:1
Induction: 2x Mikuni BDS26 carburetors 2x Mikuni flatside carburetor 4x 30mm CV 4x 30mm pressurized Mikuni CVs carburetors
Ignition: T.C.I Microcomputer controlled CDI CDI
Starting: Kick Electric Electric
Max Power: 27 hp @ 8500 rpm 45 hp / 33.6 kW @ 9500 rpm 42 ps / 30.8 kW @ 10000 rpm 90 hp / 67.1 kW @ 9000 rpm 
Max Torque: 2.5 kgf-m @ 8500 rpm 3.8 kgf-m / 40 Nm @ 8000 rpm 3.5 kgf-m / 25.3 lb-ft @ 7000 rpm 8.33 kgf-m @ 7000 rpm
Transmission: 5 Speed 6 Speed 6 Speed 5 Speed
Final Drive: Chain Chain Chain Shaft
Front Suspension: Telescopic forks 39mm Upside-down forks Telescopic forks 36mm Showa 140mm wheel travel, adjustments for air pressure
Rear Suspension: Dual shocks Monocross linkage Dual shocks preload adjustable. Dual Showa dampers, 79mm wheel travel, adjustments for air pressure, rebound damping
Front Brakes: Single disc 2X disc 4 piston calipers Single discs 2 piston caliper 2x 266mm discs
Rear Brakes: Drum Single disc 2 piston caliper Single discs 2 piston caliper Single 200mm drum
Front Tyre: 90/90-18 110/70 Z17 110/70-17 3.25-19
Rear Tyre: 110/90-18 150/60 Z17 130/70-18 120/90 V18
Dry Weight: 143.8 kg / 316.5 lbs 126 kg / 277.8 lbs 178 kg / 392 lbs 235 kg / 518 lbs
Fuel Capacity: NA 15 Litres / 4.0 US gal 18 Litres / 4.7 US gal 19.5 Litres / 5.0 US gal