| Engine Configuration |
90- degree V-Twin, 4-stroke |
| Engine Displacement |
645 cc |
| Engine Cooling System |
Liquid |
| Compression Ratio |
11.5: 1 |
| Combustion Chamber Design |
Twin Swirl |
| Valves Per Cylinder |
4 |
Intake Valves Per Cylinder
|
2 |
Exhaust Valves Per Cylinder
|
2 |
| Bore x Stroke |
81.0 mm x 62.6 mm |
| Claimed Peak Horsepower
@ rpm |
N.A. |
| Claimed Peak Torque
@ rpm |
N.A. |
| Engine Redline |
11,000 rpm |
| Valve Angle (Included) |
14 degrees Intake / 16 degrees
Exhaust (30 degrees) |
| Combustion Chamber Volume |
N.A. |
| Valve Train Type |
DOHC, Link-plate Chain/ Idler Gear Drive,
Bucket Followers, Shim-under-bucket Lash Adjustment |
| Valve Adjustment Interval |
15,000 miles |
| Intake Valve Diameter |
31.0 mm |
| Exhaust Valve Diameter |
25.5 mm |
| Intake Valve Stem Diameter |
4.5 mm |
| Exhaust Valve Stem Diameter |
4.5 mm |
| Intake Valve Maximum Lift |
8.7 mm (6.5 mm California) |
| Exhaust Valve Maximum Lift |
7.3 mm (6.5 mm California) |
| Intake Valve Timing |
|
Open BTDC
|
33 degrees |
Close ABDC
|
66 degrees |
Duration
|
279 degrees |
| Exhaust Valve Timing |
|
Open BTDC
|
55 degrees |
Close ABDC
|
66 degrees |
Duration
|
263 degrees |
| Valve Timing Measuring
Point |
N.A. |
| Fuel Delivery System |
Mikuni Fuel Injection |
| Throttle Body Venturi
Size |
39 mm |
| Air Filter Type |
Panel-type Non-woven Fabric
element |
| Exhaust System Type |
2-1 |
| Ignition System |
Digital Electronic |
| Lubrication System |
Wet Sump |
| Oil Capacity |
3.3 quarts (3.1 liters) |
| Fuel Capacity |
4.5 gallons (17 liters) |
| Transmission Type |
6-speed, Constant Mesh |
| Clutch Type |
Multi-plate, Wet |
Clutch Actuation System
|
Wire Type |
Clutch Spring Type
|
Coil |
| Number Of Clutch Springs |
6 |
Number of Clutch Plates |
13 |
Drive Plates
|
7 |
Driven Plates
|
6 |
| Primary Drive |
Gear |
| Primary Drive Gear Teeth (Ratio) |
71/ 34 (2.088:1) |
| Final Drive Sprocket Teeth
(Ratio) |
44/ 15 (2.933:1) [45/ 15 (3.000:1)] |
| Transmission Gear Teeth (Ratios) |
|
6th
|
23/ 27 (0.851:1) |
5th
|
25/ 26 (0.961:1) |
4th
|
29/ 24 (1.125:1) |
3rd
|
29/ 21 (1.380:1) |
2nd
|
32/ 18 (1.777:1) |
1st
|
32/ 13 (2.461:1) |
| Transmission Overall
Ratios |
|
6th
|
5.218:1 [5.337:1] |
5th
|
5.890:1 [6.024:1] |
4th
|
7.402:1 [7.570:1] |
3rd
|
8.459: 1 [8.651:1] |
2nd
|
10.890:1 [11.137] |
1st
|
15.078:1 [15.421:1] |
