APRILIA RSV4 Factory Service Station Manual page 76

Maintenance
Repeat the following operations:
•
move cylinder piston 1 (left rear piston)
to TDC;
•
turn the crankshaft by 450° (one com-
plete turn + 90°) in the direction of en-
gine rotation (direction of travel) to
align the hole on the intake camshaft
with the specific hole on the U bolt. This
ensures that all the rear cylinder bank
valve springs are decompressed.
•
Refit the camshaft timing setting pin in
the hole in the U bolt on the rear head,
and refit the crankshaft timing pin from
the clutch side, to check that the timing
setting was not altered while the en-
gine was turned with only one cam-
shaft drive gear fastener screw in
place.
•
Remove the camshaft timing pin.
•
Unscrew and remove the two U bolt
screws (1).
•
Remove the U bolt and the oil pipe.
Specific tooling
020851Y Camshaft timing pin
020852Y Crankshaft timing pin
•
Block crankshaft rotation using one of
the specific tools.
•
Unscrew and remove the second in-
take camshaft gear screw.
•
Leave the gear on the camshaft.
Specific tooling
020848Y Flywheel retainer
020850Y Primary gear lock
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RSV4 Factory