Technical specifications
|
| Model: |
490 Alpha E |
| Years: |
1982 |
|
Engine:
|
Single cylinder, two stroke
|
|
Capacity:
|
488 cc / 29.8 cub in.
|
|
Bore x Stroke:
|
86.5 x 83 mm
|
|
Cooling System:
|
Air cooled
|
|
Lubrication:
|
Wet sump
|
|
Recommended Oil:
|
Bel-Ray MC3
|
|
Oil Capacity:
|
0.60 L / 0.63 US quarts
|
|
Exhaust:
|
Upswept, right side
|
|
Fuel System:
|
Bing, V54, 40 mm carburetor
|
|
Spark Plug:
|
Champion N-2, NGK B9ES
|
|
Ignition:
|
Bosch, pointless
|
|
Starting:
|
Kick start
|
|
Max Power:
|
36.8 kW / 50 hp
|
|
Clutch:
|
Wet, multi-disc
|
|
Transmission:
|
5-Speed
|
|
Final Drive:
|
Chain
|
|
Gear Ratio:
|
1st 2.28 / 2nd 2.17 / 3rd 1.65 / 4th 1.25 / 5th 1.00:1
|
|
Frame:
|
Dual down tube, full cradle, chrome-molydenum
|
|
Front Suspension:
|
Leading axle, Maico forks, 42 mm, Corte & Cosso
|
|
Front Wheel Travel:
|
310 mm / 12.2 in.
|
|
Rear Suspension:
|
Single shock
|
|
Rear Wheel Travel:
|
325 mm / 12.8 in.
|
|
Front Brakes:
|
Single leading shoe, drum 136 mm
|
|
Rear Brakes:
|
Single leading shoe, drum 160 mm
|
|
Wheels:
|
Aluminum alloy, laced spokes
|
|
Front Tyre:
|
3.00 x 21 in., Metzeler
|
|
Rear Tyre:
|
4.50 x 18 in., Metzeler
|
|
Rake:
|
28.5°
|
|
Trail:
|
126 mm / 4.96 in.
|
|
Wheelbase:
|
1510 mm / 59.5 in.
|
|
Ground Clearance:
|
372 mm / 14.6 in.
|
|
Seat Height:
|
960 mm / 37.8 in.
|
|
Wet Weight:
|
116 kg / 256 lbs
|
|
Fuel Capacity:
|
15 L / 4 US gal
|
|
Review:
|
Dirt Bike, June 1982
|