APRILIA TUONO V4 R 2010 Service Station Manual page 308

Engine
•
Fit the caps.
•
Compress the valve springs with the
specific wrench and with the spring
compressing tool.
•
Insert the cotters into the seat
Specific tooling
AP8140179 Valve spring compressor
020853Y Intake valve spring compressor
020854Y Exhaust valve spring compressor
•
Release the wrench, checking that the
cotters are positioned correctly in the
valve grooves.
•
Position the adjustment shims and
then the bucket tappets.
ENG - 308
TUONO V4 R