| Engine Configuration |
Inline Four, 4-Stroke,
DOHC |
| Engine Displacement |
988cc |
| Engine Cooling
System |
Liquid |
| Compression
Ratio |
12.0:1 |
| Combustion
Chamber Design |
Twin Swirl |
| Valves Per
Cylinder |
4 |
Intake Valves Per Cylinder
|
2 (steel) |
Exhaust Valves Per Cylinder
|
2 (steel) |
| Bore x Stroke |
73.0 x 59.0 mm |
| Claimed
Peak Horsepower |
165 bhp @11,400
rpm |
| Claimed
Peak Torque |
N.A. |
| Measured Peak Horsepower |
15.05 bhp @ 11,500 rpm |
| Measured Peak Torque |
77.7 lbs. -ft. @ 8250 rpm |
| Measured Horsepower-to-weight
Ratio: |
2.97 pounds per horsepower |
| Engine Redline |
12,250 rpm |
| Valve Angle
(Included) |
25 degrees |
| Combustion
Chamber Volume |
22.4cc |
| Valve Train
Type |
DOHC, Link-plate Chain Drive,
Bucket Followers, Shim-under-bucket
Lash Adjustment |
| Valve Adjustment
Interval |
15,000 miles |
| Intake Valve Diameter |
29 mm |
| Exhaust Valve
Diameter |
24 mm |
| Intake Valve Stem
Diameter |
4 mm |
| Exhaust Valve
Stem Diameter |
4 mm |
| Intake Valve Maximum
Lift |
9 mm |
| Exhaust Valve
Maximum Lift |
8 mm |
| Intake Valve Timing |
|
Open BTDC
|
37 degrees |
Close ABDC
|
72 degrees |
Duration
|
289 degrees |
| Exhaust
Valve Timing |
|
Open BBDC
|
53 degrees |
Close ATDC
|
34 degrees |
Duration
|
266 degrees |
| Valve Timing
Measuring Point |
0.3 mm |
| Fuel Delivery
System |
Kehin Fuel
Injection |
| Throttle
Body Venturi Size |
42 mm |
| Air Filter
Type |
Non-woven Pleated
Fabric |
| Exhaust
System Type |
4-1 Titanium |
| Ignition
System |
Digital
Electric |
| Lubrication
System |
Wet Sump |
| Oil Capacity |
3.4 quarts (3.2
liters) |
| Fuel Capacity |
4.8 gallons (18.0
liters) |
| Transmission
Type |
6-speed,
Constant Mesh |
| Clutch Type |
Multi-plate,
Wet |
Clutch Actuation System
|
Cable |
Clutch Spring Type
|
Coil |
| Number Of Clutch
Springs |
5 |
Number of Clutch Plates |
19 |
Drive Plates
|
10 |
Driven Plates
|
9 |
| Primary
Drive |
Gear (straight
cut) |
| Primary Drive
Gear Teeth (Ratio) |
73/ 47 (1.553:1) |
| Final Drive Sprocket
Teeth (Ratio) |
42/ 17 (2.470:1) |
| Transmission Gear
Teeth (Ratios) |
|
6th
|
29/ 24 (1.208:1) |
5th
|
30/ 23 (1.304:1) |
4th
|
29/ 20 (1.450:1) |
3rd
|
37/ 20 (1.681:1) |
2nd
|
39/ 19 (2.052:1) |
1st
|
43/ 16 (2.687:1) |
| Transmission
Overall Ratios |
|
6th
|
4.636:1 |
5th
|
5.005:1 |
4th
|
5.564:1 |
3rd
|
6.453:1 |
2nd
|
7.876:1 |
1st
|
10.312:1 |
| Theoretical Speed in
Gears at Redline |
|
6th
|
178 mph |
5th
|
165 mph |
4th
|
148 mph |
3rd
|
128 mph |
2nd
|
105 mph |
1st
|
80 mph |
| Engine speed at 60 mph |
4114 rpm |
