Checking The Ignition Timing - APRILIA Atlantic 300 Service Station Manual

ATLANTIC 300 i.e.
•
Undo and remove the counterweight
fixing screw.
•
Remove the counterweight.
•
Remove the throttle grip.

Checking the ignition timing

- Remove the plastic cap on the flywheel cover
- Turn the flywheel until the reference mark «T» on
the rotor matches the reference mark on the fly-
wheel cover as shown in the figure (TDC). Make
sure that the reference 4V on the camshaft control
pulley is aligned with the reference point on the
head, as shown in the second figure. If the refer-
ence mark is opposite the mark on the head, make
the crankshaft turn once more.
To use this reference mark, remove the spark plug
and make the engine spin opposite its normal di-
rection of rotation applying a calliper spanner to
the camshaft control pulley casing.
Maintenance
MAIN - 51