Evinrude E-tec 75 HP, Руководство по обслуживанию

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ELECTRICAL AND IGNITION
TIMING ADJUSTMENTS
TIMING ADJUSTMENTS
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.
Turn the key switch OFF and disconnect the bat-
tery cables at the battery.
Remove spark plugs. Rotate the flywheel clock-
wise to 30° ATDC. Install Piston Stop Tool,
P/N 342679, into the spark plug hole of the num-
ber 1 cylinder.
Rotate flywheel in a counterclockwise direction
until the number 1 piston contacts the tool. Keep
pressure on the flywheel to position the piston
firmly against the tool. Mark the flywheel directly
across from the pointer. Label this mark “A.”
Rotate the flywheel in a clockwise direction until
the piston contacts the tool. Mark the flywheel
directly across from the pointer. Label this mark
“B.” Rotate flywheel
counterclockwise slightly to
release tool and remove it from spark plug hole.
Use a flexible measuring device to measure the
distance between marks “A” and “B.” Measure
along the edge of the flywheel. Mark the midpoint
on the flywheel. Label this mark “C.” If mark “C”
and the cast-in TDC boss on flywheel are in align-
ment, the timing pointer is in the correct location.
WARNING
To prevent accidental starting while ser-
vicing, remove emergency stop lanyard
and disconnect the battery cables at the
battery.
1. Piston stop tool, P/N 342679
2. Number 1 cylinder
002095
1
2
1. Timing pointer
002091
1. Mark “A’”
2. Mark “B”
3. Mark “C”
4. TDC boss
002092
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