Technical specifications
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| Model: |
640 LC4 Supercomp |
| Years: |
1999 |
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Engine:
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Four stroke, single Cylinder. SOHC, 4 valves, engine balancer
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Capacity:
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624.6 cc / 38.1 cu in
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Bore x Stroke:
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101 x 78 mm
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Compression Ratio:
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11.5:1
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Cooling System:
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Liquid cooled
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Lubrication:
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2 x Eaten oil pumps
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Induction:
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Mikuni BST 40 carburetor
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Ignition:
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Kokusan contactless DC-CDI ignition with advanced system
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Starting:
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Electric & kick
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Spark Plug:
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NGK DRBEACPR 8 E
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Battery:
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12V 8Ah, maintenance free
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Max Power:
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40.1 kW / 55 hp @ 7000 rpm
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Max Torque:
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55 Nm / 5.6 kgf-m / 40.6 lb-ft @ 5500 rpm
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Clutch:
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Multi-disc in oil bath
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Transmission:
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5 Speed
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Primary Drive Ratio:
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30:81, straight cut gears
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Gear Ratios:
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1st 14:35 / 2nd 15:24 / 3rd 18:21 / 4th 20:19 / 5th 22:18
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Final Drive Ratio:
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17:38
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Final Drive:
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Chain, O-ring 5/8 x 1/4"
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Frame:
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Central chrome-moly steel frame
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Front Suspension:
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White Power – Up Side Down 4357 MXMA fork
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Front Wheel Travel:
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275 mm / 10.8 in
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Rear Suspension:
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Central shock absorber (WP BAVP3612) with PRO-LEVER linkage to rear- swing-arm with needle bearing
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Rear Wheel Travel:
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300 mm / 11.8 in
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Front Brakes:
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Single 300 mm disc, 4 piston caliper
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Rear Brakes:
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Single 220 mm disc, 1 piston caliper
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Front Tyre:
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90/90 - 21
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Rear Tyre:
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130/80 - 18
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Steering Head Angle:
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62o
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Wheelbase:
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1510 mm / 59.4 in
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Ground Clearance:
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310mm / 12.2 in
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Seat Height:
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925 mm / 36.4 in
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Dry Weight:
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149 kg / 328 lbs
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GVWR:
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350 / 773 lbs
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Engine Oil Capacity:
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2.1 L / 2.2 US qt / 1.8 Imp qt
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Fuel Capacity:
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11 L / 2.9 US gal / 2.3 Imp gal
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