| Engine Configuration |
Inline Four, 4-stroke, with Crossplane Crankshaft |
| Engine Displacement |
998cc |
| Engine Cooling
System |
|
| Compression
Ratio |
13.0:1 |
| Combustion
Chamber Design |
|
| Valves Per
Cylinder |
4 |
| Intake Valves Per Cylinder
|
|
| Exhaust Valves Per Cylinder
|
|
| Bore x Stroke |
79.0mm x 50.9mm |
| Claimed
Peak Horsepower |
|
| Claimed
Peak Torque |
|
| Measured Peak Horsepower |
167.51bhp@12,2300rpm |
| Measured Peak Torque |
74.42 lbs.-ft. @ 10,500rpm |
| Measured Horsepower To Weight
Ratio |
2.657 pounds per horsepower |
| Engine Redline |
14,600rpm |
| Valve Angle (Included) |
11.5 degree Intake/ 13.0 degrees Exhaust (24.5 degrees) |
| Combustion
Chamber Volume |
20.8cc |
| Valve Train
Type |
DOHC, Reduction Gear and Link-Plate Chain, Finger Followers, Shim-in-retainer Lash Adjustments
|
| Valve Adjustment
Interval |
|
| Intake Valve
Diameter |
33.0mm (Titanium) |
| Exhaust
Valve Diameter |
26.5 mm (Steel) |
| Intake
Valve Stem Diameter |
|
| Exhaust
Valve Stem Diameter |
|
| Intake
Valve Maximum Lift |
9.7 mm |
| Exhaust
Valve Maximum Lift |
8.8 mm |
| Intake
Valve Timing |
|
| Open BTDC
|
34 degrees |
| Close ABDC
|
70 degrees |
| Duration
|
284 degrees |
| Exhaust
Valve Timing |
|
| Open BBDC
|
70 degrees |
| Close ATDC
|
30 degrees |
| Duration
|
280 degrees |
| Valve Timing
Measuring Point |
0.15mm Intake, 0.25mm Exhaust (lift) |
| Fuel Delivery
System |
|
| Throttle Body
Venturi Size |
45mm |
| Air Filter
Type |
|
| Exhaust
System Type |
4-2-1 (Stainless Steel/ Titanium) |
| Ignition
System |
|
| Lubrication
System |
|
| Oil Capacity |
|
| Fuel Capacity |
|
| Transmission
Type |
6-speed, constant mesh |
| 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) |
67/41 (1.634:1) |
| Final Drive Sprocket
Teeth (Ratio) |
41/16 (2.563:1) |
| Transmission Gear
Teeth (Ratios) |
|
| 6th
|
30/24 (1.250:1) |
| 5th
|
29/21 (1:381:1) |
| 4th
|
30/19 (1.579:1) |
| 3rd
|
35/19 (1.842:1) |
| 2nd
|
37/17 (2.176:1) |
| 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
|
|
