APRILIA RSV4 Factory a-PRC 2009 Service Station Manual page 370

Fit the retainer in the bearing groove.

Tighten the bearing retainer screw.

Install the balancing countershaft.

Crankshaft fitting

ACCORDING TO THE TYPE OF CRANKSHAFT, ITS INSTALLATION WILL FOLLOW TWO DIF-

FERENT PROCEDURES ("OPTION 1" AND "OPTION 2").

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

RSV4 Factory a-PRC