APRILIA SHIVER 900, Service Station Manual

Page: 53 / 444

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crankcase
•
flywheel side block journal
•
clutch side block journal
the bearings to be used for their coupling can be selected based on the following table.
MAIN BEARINGS
Block journal Crankcase class 1 Crankcase class 2
Block journal class 4 (l.v.) Half bearings A (red) Half bearings B (blue)
Block journal class 5 (l.v.) Half bearings B (blue) Half bearings C (yellow)
Block journal class 6 (l.v.) Half bearings E (green) Half bearings A (red)
Block journal class 7 (l.f.) Half bearings A (red) Half bearings B (blue)
Block journal class 8 (l.f.) Half bearings B (blue) Half bearings C (yellow)
Block journal class 9 (l.f.) Half bearings E (green) Half bearings A (red)
See also
Removing the flywheel cover
PRIMARY GEAR CATEGORY
Crankcase selectable in two classes (A or B)
based on the centre distance between the primary
reduction gears.
The categories are indicated on the clutch side
half-crankcase, in the area of the gearshift control
devices.
NOTE
IF THE CRANKCASE IS REPLACED, IT WILL BE SUPPLIED
WITH THE PRIMARY REDUCTION GEAR ALREADY COU-
PLED.
CRANKCASE-PRIMARY GEAR SELECTION CLASSES
Specification Desc./Quantity
Crankcase class A Centre distance: 110.50 - 110.54 mm (4.3504 - 4.3519 in)
Crankcase class B Centre distance: 110.46 - 110.50 mm (4.3488 - 4.3504 in)
PRIMARY CATEGORY
Pinion selectable in two classes (A or B) based on
the centre distance between the primary reduction
gears.
The categories of the class B pinions are indicated
on the pinions themselves.
CRANKSHAFT CATEGORY (CRANK PIN)
Shaft selectable in four classes (4, 5, 6, 7) based on the diameter of the crank pin.
Shaft selectable in seven classes (E1, E2, ...) based on the weight of the connecting rods.
Key:
* Connecting rod selection class.
SHIVER 900
Characteristics
CHAR - 53