2007 Johnson 30 hp PL4 4-Stroke Outboard Owners Manual

SPARK PLUGS
PROPELLER
WARNING
WARNING
The   ignition  system   presents   a   serious
shock hazard. The primary circuit operates
in excess of 250 volts; the secondary circuit
operates in excess of 25,000 volts. Use cau-
tion  to  avoid  injury  from  shock  or  injury
resulting  from  your  reaction  to  shock.  Do
not  handle  primary  or  secondary  ignition
components while the engine is cranking or
running.
To avoid accidental starting of engine while
changing  propellers,  twist  and  remove  all
spark plug leads.
IMPORTANT: Apply Triple-Guard grease to the en-
tire propeller shaft before installing the propeller. At
least annually, remove the propeller and check for
debris. Clean the shaft and regrease it before rein-
stalling a propeller.
Inspect  spark  plugs  periodically.  Replace  if  elec-
trodes are badly worn, insulators are cracked, or if
they are badly fouled.
Installation
Place the stopper on the shaft.
To remove spark plugs, twist and remove all spark
plug leads. Unscrew spark plug from cylinder head.
Align the propeller with  the propeller shaft splines
and slide the propeller onto the shaft.
To install spark plugs, wipe spark plug seats clean
with a clean rag. Install spark plugs finger tight, then
tighten to specified torque. Refer to Engine Speci-
fications.
Place the spacer and washer on the shaft.
Install propeller nut and tighten to a torque of 21 -
23 ft. lbs. (29 - 31 N·m)
Align grooves in propeller nut with hole in propeller
shaft. Insert the cotter pin and bend its ends over to
lock in place.
IMPORTANT: Avoid engine damage by installing
spark plugs into COOL cylinder head and not over-
tightening.
Before installing the spark plug lead, apply a light
coat of Triple-Guard grease to the ribbed portion of
the spark plug. This will help prevent corrosion be-
tween the spring terminal and the spark plug.
4
6
5
3
2
1
1.
2.
3.
4.
5.
6.
Stopper
Propeller
Spacer
Washer
Propeller nut
Cotter pin
1.
Ribbed portion of the spark plug
Maintenance - 41
Product Specification
CategoriesBRP Brand Manuals, Johnson 4-Stroke Manuals, Johnson Brand Manuals, Johnson Outboard Manuals
Tags,
Model Year2007
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- 56 pages
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CopyrightAttribution Non-commercial
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