| Engine Configuration |
Inline Four, 4
Stroke |
| Engine Displacement |
999 cc |
| Engine Cooling
System |
Liquid |
| Compression
Ratio |
12.5:1 |
| Combustion
Chamber Design |
Twin Swirl |
| Valves Per
Cylinder |
4 |
| Intake Valves Per Cylinder |
2 (Titanium) |
| Exhaust Valves Per Cylinder |
2 (Titanium) |
| Bore x Stroke |
73.4 mm x 59 mm |
| Connecting Rod Length
(center-to-center) |
111.5 mm |
| Connecting Rod Material |
Shotpeened Chrome-moly Steel |
| Claimed Peak Horsepower |
182.5 BHP @ N.A. rpm |
| Claimed Peak Torque |
N.A. lbs.-ft @ N.A. rpm |
| Measured
Peak Horsepower |
156.48 bhp
@ 12,100 rpm |
| Measured
Peak Torque |
74.48 lbs.
- ft. @ 9,950 rpm |
| Engine Redline |
13,750 rpm |
| Valve Angle (I
ncluded) |
12 degrees
intake, 13 degrees exhaust (25 degrees) |
| Combustion
Chamber Volume |
11 cc |
| Valve Train
Type |
DOHC, Link-plate
Chain Drive, Bucket Followers, Shim-under-bucket
Lash Adjustment |
| Valve Adjustment
Interval |
14,500 miles |
| Intake Valve
Diameter |
30 mm |
| Exhaust
Valve Diameter |
24 mm |
| Intake Valve
Stem Diameter |
4.5 mm |
| Exhaust
Valve Stem Diameter |
4.5 mm |
| Intake Valve
Maximum Lift |
9.6 mm |
| Exhaust
Valve Maximum Lift |
8.9 mm |
| Intake Valve
Timing |
|
| Open BTDC |
40 degrees |
| Close ABDC |
70 degrees |
| Duration |
290 degrees |
| Exhaust
Valve Timing |
|
| Open BBDC |
61 degrees |
| Close ATDC |
39 degrees |
| Duration |
280 degrees |
| Valve Timing
Measuring Point |
0.3 mm |
| Fuel Delivery
System |
Mikuni Fuel
Injection |
| Throttle
Body Venturi Size |
44 mm |
| Air Filter
Type |
Pleated
Paper |
| Exhaust
System Type |
4-2-1-2
(Aluminum/Titanium) |
| Ignition
System |
Digital |
| Lubrication
System |
Wet Sump |
| Oil Capacity |
3.1 quarts |
| Fuel Capacity |
4.4 gallons |
| Transmission
Type |
6-speed,
Constant Mesh |
| Clutch Type |
Multi-plate,
Wet, Back-torque-limiting |
| Clutch Actuation System |
Hydraulic |
| Clutch Spring Type |
Coil |
| Number Of Clutch Springs |
6 |
| 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) |
43/ 17 (2.529:1) |
| Transmission
Gear Teeth (Ratios) |
|
| 6th |
33/ 26 (1.269:1) |
| 5th |
34/ 25 (1.360:1) |
| 4th |
36/ 24 (1.500:1) |
| 3rd |
36/ 21 (1.714:1) |
| 2nd |
39/ 19 (2.052:1) |
| 1st |
41/ 16 (2.562:1) |
| Transmission
Overall Ratios |
|
| 6th |
4.984:1 |
| 5th |
5.341:1 |
| 4th |
5.815:1 |
| 3rd |
6.731:1 |
| 2nd |
8.059:1 |
| 1st |
10.062:1 |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
| 1st |
1st |
