APRILIA TUONO V4 R a-PRC ABS Service Station Manual page 355

TUONO V4 R a-PRC ABS
A number that indicates the position of the main
journal is stamped on the crankcase:
1. flywheel side;
2. central;
3. clutch side.
Specification
Class A
Class B
Class C
SHAFT CATEGORY
The three crankshaft main journals:
1. flywheel side;
2. central;
3. clutch side.
they are each selectable in two pairs of classes, A-
B (up to engine No. 3990) or C-D-E (from Engine
No. 3991).
The class is stamped on the flat face of the coun-
terweight, as shown in the image.
The three main journals may have different
classes to each other according to the type of cou-
pling (e.g: A - B - A or B - B - A etc.) o (e.g.: C - D
- E or D - C - C etc.)
Specification
Class A
Class B
Specification
Class C
Class D
C
RANKCASE CATEGORY
C
RANKSHAFT CATEGORY UP TO ENGINE
C
RANKSHAFT CATEGORY FROM ENGINE
Desc./Quantity
Bushing seat diameter 52.023 - 52.018 mm (2.0481 - 2.0479
Bushing seat diameter 52.018 - 52.013 mm (2.0479 - 2.0477
Bushing seat diameter 52.013 - 52.008 mm (2.0477 - 2.0475
N . 3990
O
Desc./Quantity
Main journals - diameter: 46,005 - 46,000 mm (1,8112 - 1,8110
Main journals - diameter: 46.000 - 45.995 mm (1.8110 - 1.8108
N . 3991
O
Desc./Quantity
Main journals - diameter: 46.008 - 46.003 mm (1.8113 - 1.8111
Main journals - diameter: 46,003 - 45,998 mm (1,8111 - 1,8109
Engine
in)
in)
in)
in)
in)
in)
in)
ENG - 355