Compare first and second generation
|
Engine |
Model year 1987 |
Model year 1989 |
|
Engine Type |
Liquid-cooled, D.O.H.C., 45° forward inclined 5 valves per cylinder, |
Liquid-cooled, D.O.H.C., 35° forward inclined 5 valves per cylinder, |
|
parallel 4-cylinder, 4-stroke |
parallel 4-cylinder, 4-stroke |
|
|
Displacement |
989 cc |
1002 cc |
|
Bore & Stroke |
75.0 x 56.0 mm |
75.5 x 56.0 mm |
|
Compression ratio |
11.2:1 |
12:01 |
|
Maximum power (DIN) |
135 PS @ 10.000 rpm |
145PS @10000 rpm |
|
Maximum torque |
10.4 kg.m @ 8.500 rpm |
10.9 kg-m @ 8500rpm |
|
Starting system |
Electric |
Electric |
|
Carburetion |
BDS37/4 MIKUNI |
BDST38/4 MIKUNI |
|
Lubrication |
Wet sump |
Wet sump |
|
Oil pump type |
Trochoid |
Trochoid |
|
Engine oil capacity |
3.7 L |
3.5 L |
|
Transmission type |
5-speed, constant mesh |
5-speed, constant mesh |
|
Primary reduction ratio |
68/41 (1.659) |
68/41 (1 .659) |
|
Secondary reduction ratio |
46/16 (2.875) |
47/17 (2.765) |
|
Clutch type |
Wet, multiple-disc |
Wet, multiple-disc |
|
Gear ratio (1st) |
36/14 (2.571) |
36/14 (2.571) |
|
(2nd) |
32/18 (1.778) |
32/18 (1 .778) |
|
(3rd) |
29/21 (1.381) |
29/21 (1.381) |
|
(4th) |
27/23 (1.174) |
27/23 (1.174) |
|
(5th) |
28/27 (1.037) |
28/27 (1.037) |
|
Ignition system |
T.C.I. (Digital) |
T.C.I. (Digital) |
|
Battery |
12V 14Ah |
12 V 14 Ah |
|
Generator |
A.C. Generator |
A.C. Generator |
|
|
||
|
Chassis |
Model year 1987 |
Model year 1989 |
|
Overall length |
2210 mm |
2200 mm |
|
Overall width |
730 mm |
730 mm |
|
Overall height |
1220 mm |
1160 mm |
|
Seat height |
790 mm |
765 mm |
|
Wheelbase |
1470 mm |
1460 mm |
|
Min. ground clearance |
150 mm |
135 mm |
|
Dry weight |
204 kg |
209 kg |
|
Frame type |
Double cradle aluminium DELTABOX I |
Diamond aluminium DELTABOX II |
|
Caster |
24.67° |
26. 75° |
|
Trail |
96 mm |
110 mm |
|
Fuel tank capacity |
20 L (manual fuel cock) |
19 L (electric fuel cock) |
|
Fuel reserve |
4.5 L |
3.5 L |
|
Steering head bearing type |
Taper roller bearing |
Taper roller bearing |
|
Front suspension |
Telescopic fork- Pre-load adjustable |
Telescopic fork -Pre-load adjustable |
|
Fork stroke |
130 mm |
120 mm |
|
Fork tube outer diameter |
41 mm |
43 mm |
|
Rear suspension |
Pre-load adjustable gas/oil monoshock |
Pre-load adjustable gas/oil monoshock |
|
Rear shock stroke |
50 mm |
70 mm |
|
Pivot shaft bearing |
Taper roller |
Taper roller |
|
Wheel travel - front |
130 mm |
120 mm |
|
Wheel travel - rear |
130 mm |
130 mm |
|
Tyre-front |
120/70-VR17 V270 Pirelli MP7S tubeless radial |
130/60VR17 V280 |
|
Tyre-rear |
160/60-VR 18 V270 Pirelli MP7S |
170/60VR17 V280 |
|
tubeless radial |
||
|
Rim-front |
MT 3.50 x 17 Aluminium |
MT 3.50 x 17 Aluminium |
|
Rim-rear |
MT 4.50 x 18 Aluminium |
MT 5.50 x 17 Aluminium |
|
Brakes-front |
Dual 320 mm floating type, |
Dual 320 mm, drilled discs |
|
drilled discs |
||
|
Brake-rear |
267 mm single disc, solid |
267 mm single disc, drilled |
|
Caliper-front |
4-pot opposed piston |
4-pot opposed piston |
|
Caliper-rear |
opposed piston |
opposed piston |
|
Technical specification both for unrestricted versions |
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