2C-4 ELECTRICAL AND IGNITION 90-13645--2 1095
MAXIMUM TIMING
1. Hold control arm so that maximum spark advance
screw is against stop.
2. Crank engine with starter motor and adjust maxi-
mum spark advance screw to align the specified
BTDC timing mark on flywheel with timing pointer
(due to the advance characteristic of this ignition
system, this cranking speed adjustment will auto-
matically be reduced by 2° at an engine speed of
5000 RPM). Tighten locknut.
20441
a
b
c
a - Control Arm
b - Maximum Spark Advance Screw
c - Locknut
NOTE: If initial timing adjustments are made without
engine running, then final timing checks should be
made with engine running due timing advance char-
acteristics of ignition system. Minimum engine RPM
required to check maximum timing advance is 3000
RPM.
MAXIMUM THROTTLE
1. Hold throttle arm against full throttle stop screw.
Adjust full throttle stop screw to allow throttle shut-
ters to open fully, then turn stop screw in (clock-
wise) an additional 1/2 turn, to prevent throttle le-
ver of center carburetor from acting as a stop.
Tighten locknut.
2. Install remaining spark plugs and high tension
spark plug leads.
20443
a
bc
a - Throttle Arm
b - Full Throttle Stop Screw
c - Locknut
IDLE ADJUSTMENT
1. With engine in water, connect electrical harness
and fuel line to engine. Start engine and allow to
warm up.
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