MAICO Pictures 1984
1984 MAICO 490 & 250. Technical specifications at the bottom of page
In 1984 maico
was entering the newer age with high HP engines, water cooling and new plastic.
Basically the 1984 model had the same frame, suspension, fork and wheels as
the 1983 model. Even the engine is the same except for the water cooled cylinder.
Maico raised the power output to no less than 47 HP's. The Corte Cosso rear
unit was abandoned during 1983 and the machine now had 13" (330mm) of smooth
Öhlins rear travel. The swingarm was the same steel unit that served so
well in 1983. The bike didn't gain much popularity since it couldn't keep up
with the japanese bikes anymore. All japanese bikes had disk brakes up front,
ø43mm forks and variable exhaust ports as well as rigid aluminium alloy
swingarms. The problems from the last two years with maico bikes kept the customers
away too. The 1984 maico wasn't considered competitive in the 250cc class. No
maico where left to shine in the dying open class with the 490 instead. The
GS (enduro) models where slightly more popular since most japanese bikes couldn't
be bought with lights. The competition there was merely Husqvarna and KTM that
both suffered from particially outdated technique just as well as maico. But
keep in mind that the 1984 engine was very powerful and probably stronger than
any other stock 250cc.
Maico went to fibre plates in the clutch in 1984. That was a good thing from the sore sintered clutches of the past that required these frequent oil changes.
Technical specifications | MAICO 250cc | MAICO 490cc |
Engine: |
2-stroke
single cylinder piston port air cooled
|
|
Displacement: | 247cc | 488cc |
Bore/Stroke: | 67 x 70mm | 86.5 x 83mm |
Compression ratio: |
12:1
|
|
Carburetor: |
Bing
V54/II ø 38mm
|
Bing
V54/II ø 40mm
|
Horespower: | 42HP / 8000RPM (DIN) | 56HP / 7000RPM (DIN) |
Clutch: |
Wet multi disk
|
|
Transmission: |
5
speed
|
4 speed-spider MX / 5 speed-sand spider |
Gear ratio: | 2.07/1.61/1.24/1.04/0.88 |
2.36/1.70/1.30/1.05/0.84 |
Air filter: |
Foam
|
|
Ignition: |
Motoplat
electronic
|
|
Lubrication: |
pre-mix
|
|
Frame: |
Double
loop, backbone box chrome moly steel
|
|
Fork: |
ø42mm
Hydraulic
air assisted conventional fork. 12.2" (310mm) travel
|
|
Fork oil: |
570cc,
5w hydraulic oil
|
|
Rear suspension: |
Dual Control Corte Cosso/Öhlins reservoir shock. 12.2" (310mm)
|
|
Front brake: |
Drum
brake, ø5.3" (135mm)
|
|
Rear brake: |
Drum
brake, ø6.2" (158mm)
|
|
Wheelbase: |
( 1500mm)
|
|
Ground clearance: |
(372mm)
|
|
Seat height: |
(960mm)
|
|
Dry weight: | 99Kg | 103Kg |