APRILIA SHIVER 900 Service Station Manual page 52

Characteristics
Specification
Fitting clearance
Crankcase - crankshaft - connecting rod
MARKINGS ON THE INSIDE OF THE CRANKCASES
Crankcases selectable in two classes (1 or 2), based on the diameter of the main housing.
The categories are indicated on both half-crankcases:
•
In the area of the starter gears on the flywheel side crankcase.
•
In the area of the gearshift control devices on the clutch side crankcase.
Specification
Crankcase class 1
Crankcase class 2
CRANKSHAFT
There are three crankshaft selection classes for
each capacity:
•
4 - 5 - 6 for the flywheel side;
•
7 - 8 - 9 for the clutch side;
The category type is stamped on the outside of the
crankshaft's counterweight.
NOTE
THE SHAFT CAN HAVE TWO DIFFERENT CLASSES FOR
THE TWO CAPACITIES.
Specification
Crankshaft class 4 - 7
Crankshaft class 5 - 8
Crankshaft class 6 - 9
After having determined the categories of:
CHAR - 52
C
RANKCASE SELECTION CLASSES
Bearing housing diameter: 53.954 - 53.960 mm (2.1241 -
Bearing housing diameter: 53.960 - 53.966 mm (2.1244 -
C
RANKSHAFT SELECTION CLASSES
Main journals - diameter: 49.978 - 49.984 mm (1.9676 - 1.9679
Main journals - diameter: 49.972 - 49.978 mm (1.9674 - 1.9676
Main journals - diameter: 49.990 - 49.984 mm (1.9681 - 1.9679
Desc./Quantity
0.050 - 0.064 mm (0.00197 - 0.00252 in)
Desc./Quantity
2.1244 in)
2.1246 in)
Desc./Quantity
in)
in)
in)
SHIVER 900