| Engine Configuration |
Inline Four,
4-Stroke, DOHC |
| Engine Displacement |
899 cc |
| Engine Cooling
System |
Liquid |
| Compression
Ratio |
11.5:1 |
| Combustion
Chamber Design |
Pentroof |
| Valves Per
Cylinder |
4 |
| Intake Valves Per Cylinder |
2 |
| Exhaust Valves Per Cylinder |
2 |
| Bore x Stroke |
75 x 50.9 mm |
| Claimed
Peak Horsepower |
141 bhp @ 11,000
rpm |
| Claimed
Peak Torque |
73 lbs. - ft.
@ 9,000 rpm |
| Engine Redline |
12,000 rpm |
| Valve Angle
(Included) |
12 degrees
intake, 13 degrees exhaust (25 degrees) |
| Combustion
Chamber Volume |
N.A. |
| Valve Train
Type |
DOHC, Link-plate
Chain Drive,
Bucket Followers, Shim-under-bucket
Lash Adjustment |
| Valve Adjustment
Interval |
6000 miles |
| Intake Valve
Diameter |
30 mm |
| Exhaust
Valve Diameter |
26 mm |
| Intake Valve
Stem Diameter |
4.5 mm |
| Exhaust
Valve Stem Diameter |
4.5 mm |
| Intake Valve
Maximum Lift |
9.2 mm |
| Exhaust
Valve Maximum Lift |
8.7 mm |
| Intake Valve
Timing |
|
| Open BTDC |
55 degrees |
| Close ABDC |
81 degrees |
| Duration |
316 degrees |
| Exhaust Valve Timing |
|
| Open BBDC |
47 degrees |
| Close ATDC |
65 degrees |
| Duration |
292 degrees |
| Valve Timing
Measuring Point |
0.3 mm. |
| Fuel Delivery
System |
(4) Kehin CVKD40 |
| Carburetor
Venturi Size |
40 mm |
| Air Filter
Type |
Foam |
| Exhaust
System Type |
4-1 |
| Ignition
System |
Digital
Electronic |
| Lubrication
System |
Wet Sump |
| Oil Capacity |
4.1 quarts |
| Fuel Capacity |
5 gallons |
| 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 |
19 |
| Drive Plates |
10 |
| Driven Plates |
9 |
| Primary
Drive |
Gear |
| Primary
Drive Gear Teeth (Ratio) |
84/ 49 (1.714:1) |
| Final Drive
Sprocket Teeth (Ratio) |
16/ 41 (2.563:1) |
| Transmission
Gear Teeth (Ratios) |
|
|
6th
|
23/ 21 (1.095:1) |
|
5th
|
24/ 20 (1.200:1) |
|
4th
|
28/ 21 (1.333:1) |
|
3rd
|
28/ 18 (1.556:1) |
|
2nd
|
33/ 17 (1.941:1) |
|
1st
|
36/ 14 (2.571:1) |
| Transmission
Overall Ratios |
|
|
6th
|
4.807:1 |
|
5th
|
5.268:1 |
|
4th
|
5.852:1 |
|
3rd
|
6.831:1 |
|
2nd
|
8.521:1 |
|
1st
|
11.287:1 |
