| Engine Configuration |
Inline Four, 4-Stroke |
| Engine Displacement |
999.8 cc |
| Engine Cooling |
Liquid |
| Compression Ratio |
12.3:1 |
| Combustion Chamber Design |
Pentroof |
| Valves Per Cylinder |
4 |
| Intake Valves Per Cylinder |
2 (Titanium) |
| Exhaust Valves Per Cylinder |
2 (Titanium) |
| Bore x Stroke |
76 mm x 55.1 mm |
Conecting Rod Length
(center-to-center) |
104.5 mm |
| Connecting Rod Material |
Steel |
| Measured Peak Horsepower |
155.11 bhp @ 10,650 rpm |
| Measured Peak Torque |
78.52 lbs. - ft. @ 9,750
rpm |
| Measured Horsepower-to-weight Ratio |
2.84 pounds per horsepower |
| Engine Redline |
13,400 rpm |
| Valve Angle (Included) |
11 degrees Intake/
11 degrees Exhaust (22 degrees) |
| Combustion Chamber Volume |
22.1 cc |
| Valve Train Type |
DOHC, Link-plate Chain Drive, Bucket Followers, Shim-under-bucket Lash Adjustment |
| Valve Adjustment Interval |
16,000 miles |
| Intake Valve Diameter |
30.5 mm |
| Exhaust Valve Diameter |
24.0 mm |
| Intake Valve Stem
Diameter |
4.5 mm |
| Exhaust Valve Stem Diameter |
4.0 mm |
| Intake Valve Maximum
Lift |
9.3 mm |
| Exhaust Valve Maximum
Lift |
8.4 mm |
| Intake Valve Timing |
|
| Open BTDC |
21 degrees |
| Close ABDC |
43 degrees |
| Duration |
244 degrees |
| Exhaust Valve Timing |
|
| Open BTDC |
41 degrees |
| Close ABDC |
14 degrees |
| Duration |
235 degrees |
| Valve Timing Measuring
Point |
1.0 mm (lift)
|
| Fuel Delivery System |
Keihin Fuel Injection |
| Throttle Body Venturi
Size |
46 mm |
| Air Filter Type |
Pleated Paper |
| Exhaust System Type |
4-2-1 (Stainless Steel) |
| Ignition System |
Digital |
| Lubrication System |
Wet Sump |
| Oil Capacity |
3.9 quarts (3.7 liters) |
| Fuel Capacity |
4.7 gallons (17.8 liters) |
| Transmission Type |
6-speed, Constant Mesh |
| Clutch Type |
Multi-plate, Wet, Back-torque-limiting |
| Clutch Actuation System |
Cable |
| Clutch Spring Type |
Diaphragm |
| Number Of Clutch Springs |
2 |
| Number of Clutch Plates |
17 |
| Drive Plates |
9 |
| Driven Plates |
8 |
| Primary Drive |
Gear (Straight-cut) |
| Primary Drive Gear Teeth (Ratio) |
79/46 (1.717:1) |
| Final Drive Sprocket Teeth
(Ratio) |
42/16 (2.625:1) |
| Transmission Gear Teeth (Ratios) |
|
| 6th |
33/29 (1.138:1) |
| 5th |
34/28 (1.214:1) |
| 4th |
32/24 (1.333:1) |
| 3rd |
33/22 (1.500:1) |
| 2nd |
32/18 (1.778:1) |
| 1st |
32/14 (2.286:1) |
| Transmission Overall
Ratios |
|
| 6th |
5.129:1 |
| 5th |
5.472:1 |
| 4th |
6.008:1 |
| 3rd |
6.761:1 |
| 2nd |
8.014:1 |
| 1st |
10.303:1 |
| |
|
