| Engine Configuration |
Inline Four,
4-Stroke, DOHC |
| Engine Displacement |
1137 cc |
| Engine Cooling
System |
Liquid |
| Compression
Ratio |
11.0:1 |
| Combustion
Chamber Design |
Pentroof |
| Valves Per
Cylinder |
4 |
Intake Valves Per Cylinder
|
2 |
Exhaust Valves Per Cylinder
|
2 |
| Bore x Stroke |
79.0 x 58.0 |
| Claimed
Peak Horsepower |
152 bhp @9500
rpm |
| Claimed
Peak Torque |
90 lbs. - ft.
@ 7250 rpm |
| Measured Peak Horsepower |
136.2 bhp @ 9600 rpm |
| Measured Peak Torque |
81.5 lbs. - ft. @ 7400 rpm |
| Measured Power To Weight Ratio |
4.12 Pounds Per Horsepower |
| Engine Redline |
10,800 rpm |
| Valve Angle (Included) |
30 degrees (15
degrees
Intake, 15 degrees Exhaust) |
| Combustion
Chamber Volume |
20.5 |
| Valve Train
Type |
DOHC, Link-plate Chain Drive,
Bucket Followers, Shim-under-bucket
Lash Adjustment |
| Valve Adjustment
Interval |
16,000
miles |
| Intake Valve
Diameter |
32.0 mm |
| Exhaust
Valve Diameter |
27.0 mm |
| Intake
Valve Stem Diameter |
5.0 mm |
| Exhaust
Valve Stem Diameter |
5.0 mm |
| Intake
Valve Maximum Lift |
8.3 mm |
| Exhaust
Valve Maximum Lift |
8.2 mm |
| Intake
Valve Timing |
|
Open BTDC
|
17 degrees |
Close ABDC
|
40 degrees |
Duration
|
237 degrees |
| Exhaust
Valve Timing |
|
Open BBDC
|
40 degrees |
Close ATDC
|
20 degrees |
Duration
|
240 degrees |
| Valve Timing
Measuring Point |
1.0 mm |
| Fuel Delivery
System |
Keihin Electronic
Fuel Injection |
| Throttle Body
Venturi Size |
42 mm |
| Air Filter
Type |
Pleated Paper |
| Exhaust
System Type |
4-2-1-2 |
| Ignition
System |
Digital
Electronic |
| Lubrication
System |
Wet Sump |
| Oil Capacity |
4.9 quarts (4.6
liters) |
| Fuel Capacity |
6.3 gallons (24
liters) |
| Transmission
Type |
6-speed,
Constant Mesh |
| Clutch Type |
Multi-plate,
Wet |
Clutch Actuation System
|
Hydraulic |
Clutch Spring Type
|
Coil |
| Number Of Clutch
Springs |
6 |
Number of Clutch Plates |
13 |
Drive Plates
|
7 |
Driven Plates
|
6 |
| Primary
Drive |
Gear |
| Primary Drive
Gear Teeth (Ratio) |
56/ 88 (1.571:1) |
| Final Drive Sprocket
Teeth (Ratio) |
17/ 45 (2.647:1) |
| Transmission Gear
Teeth (Ratios) |
|
6th
|
25/ 24 (1.042:1) |
5th
|
28/ 24 (1.167:1) |
4th
|
28/ 21 (1.333:1) |
3rd
|
30/ 19 (1.579:1) |
2nd
|
32/ 16 (2.000:1) |
1st
|
36/ 13 (2.769:1) |
| Transmission
Overall Ratios |
|
6th
|
4.333: 1 |
5th
|
4.853: 1 |
4th
|
5.543: 1 |
3rd
|
6.566: 1 |
2nd
|
8.317: 1 |
1st
|
11. 515 |
