| Engine Configuration | Inline Four, 4-Stroke, DOHC |
| Engine Displacement | 998 cc |
| Engine Cooling System | Liquid |
| Compression Ratio | 11.8: 1 |
| Combustion Chamber Design | 5-valve |
| Valves Per Cylinder | 5 |
Intake Valves Per Cylinder |
3 |
|
|
2 |
| Bore x Stroke | 74 mm x 58 mm |
| Claimed Peak Horsepower | 150 bhp @ 10,000 rpm |
| Claimed Peak Torque | 108 lbs. - ft. @ 8500 rpm |
| Engine Redline | 11, 750 rpm |
| Valve Angle (Included) | Center Intake
9.5 degrees; Outside intakes, 16.75 degrees; Exhaust, 11.5 degrees (28.25 degrees) |
| Combustion Chamber Volume | 14 cc |
| Valve Train Type | DOHC,
Link-plate Chain Drive, Bucket Followers, Shim-under-bucket Lash Adjustment |
| Valve Adjustment Interval | 26,600 miles |
| Intake Valve Diameter | 23.0 mm |
| Exhaust Valve Diameter | 24.5 mm |
| Intake Valve Stem Diameter | 3.9 mm |
| Exhaust Valve Stem Diameter | 4.4 mm |
| Intake Valve Maximum Lift | 7.35 mm |
| Exhaust Valve Maximum Lift | 7.75 mm |
| Intake Valve Timing | |
Open BTDC |
29 degrees |
Close ABDC |
59 degrees |
Duration |
268 degrees |
| Exhaust Valve Timing | |
Open BBDC |
60 degrees |
Close ATDC |
36 degrees |
Duration |
276 degrees |
| Valve Timing Measuring Point | Intake, 0.15 mm; Exhaust, 0.25 mm |
| Fuel Delivery System | Mikuni Fuel Injection |
| Carburetor Venturi Size | 40 mm |
| Air Filter Type | Vicious-type Element |
| Exhaust System Type | 4-1 with EXUP |
| Ignition System | Digital Electronic |
| Lubrication System | Wet Sump |
| Oil Capacity | 3.8 quarts (3.6 liters) |
| Fuel Capacity | 4.5 gallons (17 liters) |
| Transmission Type | 6-speed, Constant Mesh |
| Clutch Type | Multi-plate, Wet |
Clutch Actuation System |
Cable |
Clutch Spring Type |
Diaphragm |
Number Of Clutch Springs |
1 |
| Number of Clutch Plates | 15 |
Drive Plates |
8 |
Driven Plates |
7 |
| Primary Drive | Gear (Straight cut) |
| Primary Drive Gear Teeth (Ratio) | 29/ 26 (1.115:1) |
| Final Drive Sprocket Teeth (Ratio) | 15/ 45 (3.000:1) |
| Transmission Gear Teeth (Ratios) | |
6th |
29/ 26 (1.115:1) |
5th |
30/ 25 (1.200:1) |
4th |
28/ 21 (1.333:1) |
3rd |
30/ 20 (1.500:1) |
2nd |
35/ 19 (1.842:1) |
1st |
35/ 14 (2.500:1) |
| Transmission Overall Ratios | |
6th |
4.738:1 |
5th |
5.100:1 |
4th |
5.665:1 |
3rd |
6.375:1 |
2nd |
7.828:1 |
1st |
10.624:1 |