| Engine Configuration |
Inline Four, 4-Stroke |
| Engine Displacement |
559cc |
| Engine Cooling
System |
Liquid |
| Compression Ratio |
13.1:1 |
| Combustion Chamber
Design |
Pentroof |
| Valves Per Cylinder |
4 |
| Intake Valves Per Cylinder |
2 |
| Exhaust Valves Per Cylinder |
2 |
| Bore x Stroke |
67 x 42.5 mm |
| Claimed Peak Horsepower |
115 bhp @ 14,500 rpm |
| Claimed Peak Torque |
45 lbs. - ft. @ 10,500 rpm |
| Engine Redline |
16,000 rpm |
| Valve Angle (Included) |
11.5 degrees Intake / 12.25
degrees Exhaust (23.75 degrees) |
| Combustion Chamber
Volume |
12.38 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 |
27 mm |
| Exhaust Valve
Diameter |
23 mm |
| Intake Valve Stem
Diameter |
4.5 mm |
| Exhaust Valve
Stem Diameter |
4.5 mm |
| Intake Valve Maximum
Lift |
8.5 mm |
| Exhaust Valve
Maximum Lift |
7.7 mm |
| Intake Valve Timing |
|
| Open BTDC |
39 degrees |
| Close ABDC |
65 degrees |
| Duration |
284 degrees |
| Exhaust
Valve Timing |
|
| Open BBDC |
64 degrees |
| Close ATDC |
24 degrees |
| Duration |
268 degrees |
| Valve Timing
Measuring Point |
0.15 mm Intake, 0.25
mm Exhaust |
| Fuel Delivery
System |
Mikuni Fuel Injection |
| Throttle
Body Venturi Size |
41 mm |
| Air Filter
Type |
Pleated Paper, Oiled |
| Exhaust
System Type |
4-2-1 w/ EXUP, Stainless
Steel w/ Titanium Silencer |
| Ignition
System |
Digital CDI |
| Lubrication
System |
Wet Sump |
| Oil Capacity |
3.5 quarts |
| Fuel Capacity |
4.6 gallons |
| Transmission
Type |
6-speed |
| 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 |
17 |
| Drive Plates |
9 |
| Driven Plates |
8 |
| Primary
Drive |
Gear |
| Primary
Drive Gear Teeth (Ratio) |
85/ 41 (2.073:1) |
| Final Drive
Sprocket Teeth (Ratio) |
44/ 16 (2.750:1) |
| Transmission
Gear Teeth (Ratios) |
|
| 6th |
23/ 20 (1.150:1) |
| 5th |
27/ 21 (1.286:1) |
| 4th |
26/ 18 (1.444:1) |
| 3rd |
30/ 18 (1.667:1) |
| 2nd |
32/ 16 (2.000:1) |
| 1st |
31/ 12 (2.583:1) |
| Transmission
Overall Ratios |
|
| 6th |
6.556:1 |
| 5th |
7.331:1 |
| 4th |
8.231:1 |
| 3rd |
9.503:1 |
| 2nd |
11.402:1 |
| 1st |
14.725:1 |
