APRILIA ETX 150 Service Station Manual page 102

Engine
Timing
•
Turn the crankshaft until the TDC is
identified (top dead centre).
•
Check that the rockers are not fixated
on the valves but that there is clear-
ance, otherwise check the crankshaft
installation procedure.
•
Install the timing system gear paying
attention that the notches are aligned
with the head level line
•
Check that the timing chain is correctly
positioned on the gear on the crank-
shaft
ENG - 102
ETX - STX 150