| Engine Configuration |
Inline Triple, 4-stroke |
| Engine Displacement |
674.8 cc |
| Engine Cooling |
Liquid |
| Compression Ratio |
12.65:1 |
| Combustion Chamber Design |
Pentroof |
| Valves Per Cylinder |
4 |
| Intake Valves Per Cylinder |
2 (Stainless Steel) |
| Exhaust Valves Per Cylinder |
2 (Stainless Steel) |
| Bore x Stroke |
74.0mm x 52.3mm |
Conecting Rod Length
(center-to-center) |
104.6mm (4.1 inches)
|
| Connecting Rod Material |
Chrome Moly Steel |
| Claimed Peak Horsepower |
124bhp @ 12,600rpm |
| Claimed Peak Torque |
53 lbs.-ft. @ 11,700 |
| Engine Redline |
13,900 rpm |
| Valve Angle (Included) |
11.0 degrees Intake/ 12.0 degrees Exhaust (23.0 degrees) |
| Combustion Chamber Volume |
10.7cc |
| Valve Train Type |
DOHC, Link-plate Chain Drive, Bucket Followers, Shim-under-bucket Lash Adjustment |
| Valve Adjustment Interval |
12,000 miles |
| Intake Valve Diameter |
30.5 mm |
| Exhaust Valve Diameter |
25.5 mm |
| Intake Valve Stem
Diameter |
4.0 mm |
| Exhaust Valve Stem Diameter |
4.0 mm |
| Intake Valve Maximum
Lift |
9.25 mm |
| Exhaust Valve Maximum
Lift |
8.5 mm |
| Intake Valve Timing |
|
| Open BTDC |
27.49 degrees |
| Close ABDC |
51.49 degrees |
| Duration |
259.98 degrees |
| Exhaust Valve Timing |
|
| Open BTDC |
43.54 degrees |
| Close ABDC |
23.54 degrees |
| Duration |
247.08 degrees |
| Valve Timing Measuring
Point |
1.0mm (lift)
|
| Fuel Delivery System |
Keihin Fuel Injection |
| Throttle Body Venturi
Size |
44mm |
| Air Filter Type |
Pleated Paper Element |
| Exhaust System Type |
3-into-1 (stainless steel) |
| Ignition System |
Digital |
| Lubrication System |
Wet Sump |
| Oil Capacity |
3.7 quarts (3.5 liters) |
| Fuel Capacity |
4.6 gallons (17.4 liters) |
| Transmission Type |
6-speed Constant Mesh |
| Clutch Type |
Multi-plate, Wet, |
| Clutch Actuation System |
Cable |
| Clutch Spring Type |
Coil |
| Number Of Clutch Springs |
5 |
| Number of Clutch Plates |
17 |
| Drive Plates |
9 |
| Driven Plates |
8 |
| Primary Drive |
Gear |
| Primary Drive Gear Teeth (Ratio) |
85/46 (1.848:1) |
| Final Drive Sprocket Teeth
(Ratio) |
47/16 (2.938:1)
|
| Transmission Gear Teeth (Ratios) |
|
| 6th |
25/22 (1.136:1) |
| 5th |
26/21 (1.238:1) |
| 4th |
27/20 (1.350:1) |
| 3rd |
36/23 (1.565:1) |
| 2nd |
39/21 (1.857:1) |
| 1st |
37/16 (2.313:1) |
| Transmission Overall
Ratios |
|
| 6th |
6.168:1 |
| 5th |
6.720:1 |
| 4th |
7.328:1 |
| 3rd |
8.493:1 |
| 2nd |
10.081:1 |
| 1st |
12.552:1 |
| |
|
