APRILIA V990 Manual page 20

TECHNICAL INFORMATION
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ENGINE
Spark advance
Starter motor gear ratio
Clutch
Transmission
Lubrication system
Lubrication pressure
Air cleaner
Cooling
Coolant pump gear ratio
Coolant pump delivery (with thermal expansion valve open)
Thermal expansion valve opening start temperature
Engine dry weight
DRIVE W w
GEAR RATIOS Ratio
# sprocket teeth
DRIVE ñ
GEAR RATIOS Ratio
# sprocket teeth
DRIVE å
GEAR RATIOS Ratio
# sprocket teeth
DRIVE ü
GEAR RATIOS Ratio
# sprocket teeth
2 - 4
- 00
Primary
a
1 31/60 = 1: 1.935
a
2
a
3
a
4
a
5
a
6
Primary
a
1 31/60 = 1: 1.935
a
2
a
3
a
4
a
5
a
6
Primary
a
1 31/60 = 1: 1.935
a
2
a
3
a
4
a
5
a
6
Primary
a
1 31/60 = 1: 1.935
a
2
a
3
a
4
a
5
a
6
At start: 5° before TDC, additional advance depending
on specific consumption levels
i= 49/9 * 30/11 * 64/30 = 31.677
multidisc in oil bath, with hydraulic control on the left
side of the handlebar and PPC device
- # 9 friction discs; thick 3.5 mm
- # 10 steel discs; thick 1.5 mm
Mechanical, 6 gears with foot control on the left side of
the engine
dry pan with separate oil tank, # 2 trochoidal pumps
and cooling radiator
min 500 kPa (5 bar)
at max 80 °C (176 °F) and 6000 rpm
with dry filter cartridge
liquid-cooled
i = 28/27 * 28/28 = 1.037
wp
90 L /min and 9000 rpm
65 ± 2 °C (149 ± 5 °F)
~ 65 – 67 kg
Secondary Final ratio
14/35 = 1: 2.50 17/42 = 1: 2.470 11.948
16/28 = 1: 1.750
19/26 = 1: 1.368
22/24 = 1: 1.090
23/22 = 1: 0.956
27/23 = 1: 0.851
17
Secondary Final ratio
14/35 = 1: 2.50 16/41 = 1: 2.563 12.399
16/28 = 1: 1.750
19/26 = 1: 1.368
22/24 = 1: 1.090
23/22 = 1: 0.956
27/23 = 1: 0.851
16
Secondary Final ratio
14/35 = 1: 2.50 16/43 = 1 : 2.687 13.00
16/28 = 1: 1.750
19/26 = 1: 1.368
22/24 = 1: 1.090
23/22 = 1: 0.956
27/23 = 1: 0.851
16
Secondary Final ratio
14/35 = 1: 2.50 17/45 = 1 : 2.647 12.804
16/28 = 1: 1.750
19/26 = 1: 1.368
22/24 = 1: 1.090
23/22 = 1: 0.956
27/23 = 1: 0.851
17
V990 engine
Total ratio
8.368
6.543
5.216
4.573
4.073
Total ratio
8.679
6.787
5.411
4.744
4.225
Total ratio
9.102
7.117
5.674
4.975
4.431
Total ratio
9.041
7.006
5.582
4.896
4.358
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Release 01/2001-10