APRILIA TUONO V4 R a-PRC ABS Service Station Manual page 363

TUONO V4 R a-PRC ABS
•
Remove the special tool.
•
Use a thin screwdriver to check that the
countershaft lubrication oil passage is
aligned with the hole on the installed
bushing.
Crankshaft fitting
NOTE
ACCORDING TO THE TYPE OF CRANKSHAFT, ITS INSTALLATION WILL FOLLOW TWO DIF-
FERENT PROCEDURES ("OPTION 1" AND "OPTION 2").
OPTION 1
Crankshaft with removable gear.
If the two timing chain control sprockets (1 - 2) on
the crankshaft were removed, check their exact
positioning carefully because the two components
cannot be interchanged.
Remember that the thicker sprocket (1) must be
positioned from the clutch side of the crankshaft.
Position the sprocket (1) with the smooth side fac-
ing outward of the crankshaft.
Move the sprocket (1) up against the crankshaft
shoulder.
Engine
ENG - 363