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 |
|
|