APRILIA TUONO V4 R a-PRC ABS User Manual

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.
•
Block crankshaft rotation using one of
the specific tools.
•
Unscrew and remove the second in-
take camshaft gear screw.
•
Remove the crankshaft locking tool.
Specific tooling
020850Y Primary gear lock
020848Y Flywheel retainer
•
Slide the gear off the intake camshaft.
•
Block the gear to the timing chain with
a clamp.
•
Unscrew and remove the ten screws
(1-2), proceeding in stages and in a
crossed pattern.
•
Retrieve the washers from the screws
(2) near the spark plug holes.
•
Remove the U bolts with the O rings
and locator pins.
NOTE
MARK THE COMPONENTS TO PREVENT INCORRECT RE-
FITTING.
TUONO V4 R a-PRC ABS Engine
ENG - 321

APRILIA TUONO V4 R a-PRC ABS Specifications

General

Brand	APRILIA
Model	TUONO V4 R a-PRC ABS
Category	Motorcycle
Language	English