Evinrude FISHERMAN 6902 User Manual

maintenance
CARBURETOR ADJUSTMENT
The carburetor low speed adjust-
ment is preset at the fa c tory with
provisions made for normal adjust-
ment to compensate for changes in
fuel, altitude and climate. When run-
ning at slow speed with a warm en-
gine, adjust the "low speed" knob un-
til motor idles smoothly. Turning the
adjustment knob clockwise (right hand
rotation) will lean out the fuel mix-
ture . Turning the adjustment knob
counterclockwise (left hand rotation)
will e nrich the fu el mixture. Should
readjustment be required, proceed as
follows:
• Remove adjusting knob D from
shaft by merely pulling off.
• Turn needle valv e shaft II clock-
wise until it closes and seats. Do
not force.
•Then turn needle valve counterclock-
wise 3/ 4 turn.
FUEL FILTER
• Start motor, run until warm, and
retard throttle to normal idle rpm.
Adjust shaft until best performance
is o btained .
• Replace the adjustin g knob so num-
ber 3 is opposite the "low sp eed
mixture " marker.
The fuel filter assembl y consists of the parts shown and is attached to the fuel
pump by a screw IJ . To inspect for sediment or water accumulation remove the
mounting
screw. The filter will disassemble easily. Wash filter element IJ with
clean solvent and a brush. Assemble filter as shown being careful to assem ble lip
of filter screen toward fuel pump. Tighten mounting screw secur ely. Check for
le aks by connecting fuel line to motor and squeezing primer bulb until definite pres -
sure is felt in the bulb.
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SPARK PLUGS
The recommended spark plug for
y our motor is Champion J4J, AC-M42K
or Auto-Lite A21X with gap set at
.030".
To remove spark plugs, pull off
rubber covered spark plug terminal
with a slight counterclockwise twist.
Do not clean badly carboned plugs .
Replace them.
Befor e reinstalling spark plugs,
clean the plug seats in cylinder head .
Install plugs and gaskets finger tight
plus 1/ 4 turn with wrench. Recom-
mended torque is 17-1 / 2 to 20-1 / 2
foot
pounds if torque wrench is avail-
able. Spring a inside rubber ter-
minal lead cover Ill must fit prop-
erl y over spark plugterminal.
REPLACING PROPELLER
When replacing propeller II be
sur e gear shift lever is in neutral to
avoid accidently starting motor.
Pull the cotter pin II from the
prop e ller nut and remove the propel-
ler nut II and propeller from the
shaft. Remove drive pin IJ if dam -
aged, install new drive pin. Reassem-
ble in revers e order. Always tighten
propeller nut to align the cotter pin
hol e, do not loosen nut.
CARBON REMOVAL
01§1
~ -: :G>l
To obtain continued top performance from your motor it should be returned to
your dealer after 200 hours of operation for carb~n removal. All ~asoline engines
deposit a light coating of carbon on the top of the pistons and the cyhnder _head when
running. Some operating conditions and fuels may harden ~~e formatwn so that
removal should be accomplished before the 200 hours specified. Your dea_ler IS
best equipped to perform this service. Correct cylinder head reassembly IS ex -
tremely important.
EXTERNAL FINISH
The finish on your outboard motor is a baked enamel designed for use in either
fresh or salt water . The only care necessary when used in fresh water is an oc-
casional wipe down with a dry cloth to maintain the lustre . It is . advisable, after
us e in salt water to wash the entire motor with fresh water, wipe dry and then
a pply a coating of' automotive wax. No internal flushing is required after use in
s a lt water.
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Evinrude FISHERMAN 6902 Specifications