Yamaha WR 400F (1998-00) vs Yamaha RD 200 (1979) vs Yamaha XT660R (2004)

Comparison technical specifications

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Make:	Yamaha	Yamaha	Yamaha
Model:	WR 400F	RD 200	XT660R
Years:	1998-00	1979	2004
Engine:	Four stroke, single cylinder, DOHC, 5 valve	Two stroke, torque induction, parallel twin	Four stroke, single cylinder, SOHC, 4 valve
Capacity:	399 cc / 24.3 cu-in	195 cc / 11.8 cu-in	659 cc/ 40.2 cu-in
Bore x Stroke:	92.0 x 60.1mm	52 х 46 mm	100 x 84 mm
Cooling System:	Lliquid cooled	Air cooled	Liquid cooled
Compression Ratio:	12.5:1	7.1:1	10.0: 1
Induction:	Keihin 39mm FCR, accelerator pump, throttle positioning sensor	2x Y20P Carburetors	Fuel injection, 44 mm throttle body
Ignition:	CDI	Battery coil	TCI
Starting:	Kick	Electric & Kick	Electric
Max Power:	48 hp / 35.3 kW @ 8000 rpm	20 hp / 14.7 kW @ 8000 rpm	33.8 kW / 48 hp @ 6000 rpm
Max Torque:	39 Nm / @ 7500 rpm	1.9 kgf-m / 8.6 Nm @ 7000 rpm	58.4 Nm / 5.7 kgf-m @ 5250 rpm
Transmission:	5 Speed	5 Speed	5 Speed
Final Drive:	Chain	Chain	Chain
Front Suspension:	Inverted 46mm Kayaba forks with	Telescopic forks	43 mm Telescopic forks,
Rear Suspension:	Monocross Kayaba	Dual shocks	Oscillating arm standard Monocross. 200mm wheel travel
Front Brakes:	Single 245mm disc 4 piston caliper	Single 245 mm disc	Single 298mm disc 2 piston caliper
Rear Brakes:	Single 220mm disc 2 piston caliper	Drum	Single 245mm disc 1 piston caliper
Front Tyre:	80/100-21	2.75-18-4PR	90/90- 21
Rear Tyre:	110/100-18	3.25-18-4PR	130/80–17
Wheelbase:	1480 mm / 58.3 in	1240 mm / 48.8 in	1505 mm / 59.3 in
Seat height:	991 mm / 39.0 in	780 mm / 30.7 in	865mm / 34.1 in
Ground Clearance:	373 mm / 14.7 in	155 mm / 6.1 in	210 mm / 8.3 in
Fuel Capacity:	8 Litres / 2.1 US gal	11.5 Litres / 3.0 US gal	15 Litres / 3.3 US gal