| Engine Configuration |
Inline Four,
4-Stroke |
| Engine Displacement |
998cc |
| Engine Cooling
System |
Liquid |
| Compression
Ratio |
13.0:1 |
| Combustion
Chamber Design |
|
| Valves Per
Cylinder |
4 |
|
Intake Valves Per Cylinder
|
2 |
|
Exhaust Valves Per Cylinder
|
2 |
| Bore x Stroke |
76.0mm x 55mm |
| Claimed
Peak Horsepower |
|
| Claimed
Peak Torque |
|
| Measured Peak Horsepower |
169.86 bhp@11,960rpm |
| Measured Peak Torque |
75.74 lbs.-ft. @ 10,970rpm |
| Measured Horsepower To Weight
Ratio |
2.649 pounds per horsepower |
| Engine Redline |
14,000rpm |
| Valve Angle (Included) |
12.0 degree Intake/ 13.0 degrees Exhaust (25.0 degrees) |
| Combustion
Chamber Volume |
20.8cc |
| Valve Train
Type |
DOHC, Link-Plate Chain Drive, Bucket Tappets, Shim-under-bucket Lash Adjustments
|
| Valve Adjustment
Interval |
|
| Intake Valve
Diameter |
31.0mm (Titanium) |
| Exhaust
Valve Diameter |
26.5 mm (Titanium) |
| Intake
Valve Stem Diameter |
|
| Exhaust
Valve Stem Diameter |
|
| Intake
Valve Maximum Lift |
10.3 mm |
| Exhaust
Valve Maximum Lift |
9.1 mm |
| Intake
Valve Timing |
|
|
Open BTDC
|
45 degrees |
|
Close ABDC
|
76 degrees |
|
Duration
|
301 degrees |
| Exhaust
Valve Timing |
|
|
Open BBDC
|
77 degrees |
|
Close ATDC
|
49 degrees |
|
Duration
|
306 degrees |
| Valve Timing
Measuring Point |
0.3mm (lift) |
| Fuel Delivery
System |
|
| Throttle Body
Venturi Size |
45mm |
| Air Filter
Type |
|
| Exhaust
System Type |
4-2-1 (Stainless Steel/ Titanium/Aluminum) |
| Ignition
System |
|
| Lubrication
System |
|
| Oil Capacity |
|
| Fuel Capacity |
|
| Transmission
Type |
6-speed, constant mesh, cassette type |
| Clutch Type |
Multi-plate, Wet, Back-Torque-Limiting |
|
Clutch Actuation System
|
Cable |
|
Clutch Spring Type
|
Coil |
| Number Of Clutch
Springs |
|
Number of Clutch Plates |
|
|
Drive Plates
|
|
|
Driven Plates
|
|
| Primary
Drive |
Gear (straight cut) |
| Primary Drive
Gear Teeth (Ratio) |
79/47 (1.681:1) |
| Final Drive Sprocket
Teeth (Ratio) |
39/17 (2.294:1) |
| Transmission Gear
Teeth (Ratios) |
|
|
6th
|
32/23 (1.391:1) |
|
5th
|
31/20 (1:550:1) |
|
4th
|
31/18 (1.722:1) |
|
3rd
|
35/18 (1.944:1) |
|
2nd
|
31/14 (2.214:1) |
|
1st
|
39/15 (2.600:1) |
| Transmission
Overall Ratios |
N/A |
|
6th
|
|
|
5th
|
|
|
4th
|
|
|
3rd
|
|
|
2nd
|
|
|
1st
|
|
| Theoretical Speed in
Gears at Redline |
N/A |
|
6th
|
|
|
5th
|
|
|
4th
|
|
|
3rd
|
|
|
2nd
|
|
|
1st
|
|
