Technical specifications
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| Model: |
SP 500 |
| Years: |
1981-83 |
|
Engine:
|
Four stroke, single cylinder, SOHC, 4 valves
|
|
Capacity:
|
498 cc / 30.4 cu in
|
|
Bore x Stroke:
|
88 x 82 mm
|
|
Compression Ratio:
|
8.7:1
|
|
Cooling System:
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Air/oil cooled
|
|
Lubricaiton System:
|
Wet sump
|
|
Induction:
|
Mikuni BS40SS carburetor
|
|
Ignition:
|
PEI pointless
|
|
Starting:
|
Kick
|
|
Battery:
|
6V, 4Ah
|
|
Max Power:
|
26 kW / 36 hp @ 6500 rpm
|
|
Max Torque:
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42 Nm / 4.3 kgf-m /31 lb-ft @ 5000 rpm
|
|
Clutch:
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Wet, multi-plate
|
|
Transmission:
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5 Speed, constant mesh
|
|
Final Drive:
|
Chain, #520
|
|
Primary Reduction:
|
2.39:1
|
|
Final Reduction:
|
3.36:1
|
|
Rake:
|
29.5
|
|
Front Suspension:
|
Telescopic fork, Showa 36 mm, air/oil damped
|
|
Front Wheel Travel:
|
195 mm / 7.7 in
|
|
Rear Suspension:
|
Swingarm, dual shocks, coil springs, adjustable springload and compression damping
|
|
Rear Wheel Travel:
|
195 mm / 7.7 in
|
|
Front Brakes:
|
150 mm Drum
|
|
Rear Brakes:
|
150 mm Drum
|
|
Front Tyre:
|
3.00 -21
|
|
Rear Tyre:
|
4.60 -18
|
|
Wheelbase:
|
1461 mm / 57.5 in
|
|
Ground Clearance:
|
270 mm / 10.6 in
|
|
Seat Height:
|
870 mm / 34.3 in
|
|
Dry Weight:
|
139 kg / 306 lbs
|
|
Fuel Capacity:
|
9 Litres / 2.4 US gal / 2.0 Imp gal
|
|
Fuel Reserve:
|
2 Litres / 0.5 US gal / 0.4 Imp gal
|
|
Review:
|
Clement Salvadori, Rider Magazine
|