Electrical and Ignition
Timing Adjustments
136
Timing Adjustments
Ignition timing is set at the factory and does NOT
require routine adjustment.
Check ignition timing after any of the following
procedures:
•
Powerhead replacement
•
Crankshaft replacement
•
Flywheel replacement
Timing Pointer
The timing pointer must be adjusted to indicate
top dead center (TDC) of the number 1 piston.
This reference to the position of the number 1 pis-
ton is used to synchronize the electronic timing
controlled by the
EMM
with the mechanical posi-
tion of the number 1 piston.
Always check timing pointer adjustment before
using the
Evinrude Diagnostics
software Timing
Verification procedure.
Disconnect the battery cables at the battery.
Remove the plugs from the center frame, air duct
and flywheel. Remove the spark plugs.
Use Flywheel Nut Socket, P/N 357715, to rotate
the flywheel clockwise past the 28° ATDC mark on
the flywheel.
Install the Piston Stop Tool, P/N 342679, com-
pletely into the spark plug hole of the number 1
cylinder.
1. Rotate flywheel
counterclockwise
until the
number 1 piston contacts the tool. Keep pres-
sure on the flywheel to position the piston firmly
against the tool. It is NOT necessary to force
the piston against the tool.
NOTICE
Make sure the timing pointer is set and the
outboard reaches operating temperature
BEFORE making any timing adjustments.
WARNING
To prevent accidental starting while servic-
ing, remove the key from the key switch. Dis-
connect the battery cables at the battery.
NOTICE
The timing pointer is NOT set at the factory
and MUST be set BEFORE making any timing
adjustments.
1.
Flywheel Nut Socket, P/N 357715
009368
1.
Piston stop tool
009361
1
1
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