MAINTENANCE
CLAMP SCREWS AND MOUNTING BOLTS
Stop the engine and adjust the throttle arm stop
screw to change
idle speed. Tighten locking nut
when the desired idle speed
is
obtained.
CLAMP SCREWS AND
MOUNTING BOLTS
Check clamp screws and mounting bolts fre-
quently. Grease or replace components as
needed. High use
applications require more fre-
quent checks.
1 10-HOUR INSPECTION
1. Throttle arm stop screw 45026
Run engine in gear at, or near, full throttle for one
minute. Quickly reduce engine speed to 700 RPM
and shift into NEUTRAL. Engine should continue
to
run
smoothly.
If
outboard stalls or backfires, the idle fuel mixture
may be too lean. Refer to CARBURETOR MIX-
TURE ADJUSTMENT
on
p.
161.
Throttle Cable Installation
Using the hardware supplied, attach the throttle
cable
to the throttle arm. Tighten locknut securely.
Refer to Control Cable Installation on
p.
42 for
correct
cable installation procedure.
IMPORTANT: Failure to follow this procedure
exactly might cause accelerated wear of shift sys-
tem components and high shifting effort.
Install the throttle cable trunnion cover and tighten
cover screw to 60 to 84
in.
Ibs.
(7
to 9 N·m).
76
IMPORTANT: All Johnson outboard owners are
encouraged to return their new engines to an
authorized
dealer for a mechanical check.
This check
should
be
performed after approxi-
mately 10 operating hours. The cost of this check
should
be
figured at local dealer labor rates and
paid for by the engine owner.
The
10 hour inspection should check:
• Battery connections and condition
• System Check and warning horn functionality
•
Anticorrosion anodes functionality
•
Water intake screens
• Overboard water pressure indicator functionality
• Steering system functionality (lubricate as
needed)
• Throttle and shift operation
• Emergency stop circuit and lanyard functionality
• Fuel
system components, fix and repair any
leaks
• Fuel filter, eliminate any contamination
• Fasteners, tighten loose components
• Air silencer, clean and inspect
• Thermostat operation
• Engine to transom mounting hardware
• Electrical and ignition wires and connections
• Powerhead synchronization and linkage adjust-
ments
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