Yamaha XT 600 (1986-87) vs KTM 640 LC4 Enduro (1999-00)
Comparison technical specifications
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| Make: | Yamaha | KTM |
| Model: | XT 600 | 640 LC4 Enduro |
| Years: | 1986-87 | 1999-00 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, single Cylinder. SOHC, 4 valves, engine balancer |
| Capacity: | 595 cc / 36.3 cu-in | 624.6 cc / 38.1 cu in |
| Bore x Stroke: | 95 x 84 mm | 101 x 78 mm |
| Cooling System: | Air/oil cooled, | Liquid cooled |
| Compression Ratio: | 8.5:1 | 11.5:1 |
| Induction: | 27mm Dual stage Teikei Y 27 PV carburetor | Mikuni BST 40 carburetor |
| Ignition: | CDI | Kokusan contactless DC-CDI ignition with advanced system |
| Battery: | I2V/12Ah | 12V 8Ah, maintenance free |
| Starting: | Kick | Electric & kick |
| Max Power: | 46 hp / 34 kW @ 6000 rpm | 40.1 kW / 55 hp @ 7000 rpm |
| Max Torque: | 4.5 kgf-m / 51 Nm @ 5750 rpm | 55 Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain, O-ring 5/8 x 1/4" |
| Front Suspension: | Telescopic air assisted | White Power – Up Side Down 4357 MXMA fork |
| Front Wheel Travel: | 255 mm / 10.0 in | 280 mm / 11.0 in |
| Rear Suspension: | Monoshock swing arm | Central shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing |
| Rear Wheel Travel: | 236 mm / 9.2 in | 320 mm / 12.6 in |
| Front Brakes: | Single 267mm disc | Single 300 mm disc, 4 piston caliper |
| Rear Brakes: | 150mm Drum | Single 220 mm disc, 1 piston caliper |
| Front Tyre: | 3.00-21 | 90/90 - 21 |
| Rear Tyre: | 4.60-18 | 140/80 - 18 |
| Wheelbase: | 1435 mm / 56.4 in | 1510 mm / 59.4 in |
| Seat Height: | 860 mm / 33.8 in | 930 mm / 36.6 in |
| Ground Clearance: | 260 mm / 10.2 in | 310mm / 12.2 in |
| Fuel Capacity: | 11 Litres | 12 L / 3.2 US gal / 2.6 Imp gal |
| Consumption Average: | 61 mpg | 4.7 sec |
| Top Speed: | 100 mph / 160 km/h | 168 km/h / 104 mph |