| Engine Configuration |
Inline Four, 4-stroke |
| Engine Displacement |
599 cc |
| Engine Cooling
System |
Liquid |
| Compression
Ratio |
13.3:1 |
| Combustion
Chamber Design |
Pentroof |
| Valves Per
Cylinder |
4 |
| Intake Valves Per Cylinder |
2 |
| Exhaust Valves Per Cylinder |
2 |
| Bore x Stroke |
67mm x 42.6
mm |
| Measured
Peak Horsepower |
104.19 bhp
@ 13,200 rpm |
| Measured
Peak Torque |
44.71 lbs.
- ft. @ 11,500 rpm |
| Measured Horsepower-to-weight
Ratio |
4.23 pounds per horsepower |
| Claimed
Engine Redline |
16,500 rpm |
| Measured Engine Redline |
15,300 rpm |
| Valve Angle (Included) |
12 degrees
intake, 12 degrees exhaust (24 degrees) |
| Combustion
Chamber Volume |
12.2 cc |
| Valve Train
Type |
DOHC, Link-plate
Chain Drive, Bucket Followers Shim-under-bucket
Lash Adjustment |
| Valve Adjustment
Interval |
15,000 miles |
| Intake Valve
Diameter |
27.5 mm |
| Exhaust
Valve Diameter |
23.1 mm |
| Intake Valve
Stem Diameter |
4.0 mm |
| Exhaust
Valve Stem Diameter |
4.0 mm |
| Intake Valve
Maximum Lift |
8.3 mm |
| Exhaust
Valve Maximum Lift |
7.5 mm |
| Intake Valve
Timing |
|
| Open BTDC |
41 degrees |
| Close ABDC |
67 degrees |
| Duration |
288 degrees |
| Exhaust
Valve Timing |
|
| Open BBDC |
63 degrees |
| Close ATDC |
23 degrees |
| Duration |
266 degrees |
| Valve Timing
Measuring Point |
1.0 mm lift |
| Fuel Delivery
System |
Keihin Fuel
Injection |
| Throttle
Body Venturi Size |
38 mm |
| Air Filter
Type |
Pleated
Paper |
| Exhaust
System Type |
4-1 |
| Ignition
System |
Digital |
| Lubrication
System |
Wet Sump |
| Oil Capacity |
4 quarts |
| Fuel Capacity |
4.8 gallons |
| Transmission
Type |
6-speed,
Constant Mesh, Cassette |
| Clutch Type |
Multi-plate,
Wet, Back-torque-limiting |
| Clutch Actuation System |
Cable |
| Clutch Spring Type |
Coil |
| Number Of Clutch Springs |
6 |
| Number of
Clutch Plates |
15 |
| Drive Plates |
7 |
| Driven Plates |
8 |
| Primary
Drive |
Gear (Straight-cut) |
| Primary
Drive Gear Teeth (Ratio) |
76/ 40 (1.900:1) |
| Final Drive
Sprocket Teeth (Ratio) |
43/ 16 (2.688:1) |
| Transmission
Gear Teeth (Ratios) |
|
| 6th |
26/ 20 (1.300:1) |
| 5th |
27/ 19 (1.421:1) |
| 4th |
32/ 20 (1.600:1) |
| 3rd |
37/ 20 (1.850:1) |
| 2nd |
33/ 15 (2.200:1) |
| 1st |
38/ 14 (2.714:1) |
| Transmission
Overall Ratios |
|
| 6th |
6.639:1 |
| 5th |
7.257:1 |
| 4th |
8.171:1 |
| 3rd |
9.448:1 |
| 2nd |
11.235:1 |
| 1st |
13.860:1 |
