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BOMBARDIER Ski-Doo 1978 Series Operator's Manual page 19

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Disconnect spark plug wires and re-
move spark plugs.
Check condition of plugs.
• A brownish tip reflects ideal condi-
tions.
(Correct carburetor, spark
plug heat range; etc.).
• A black insulator tip indicates fou-
ling caused by; carburetor idlespeed
mixture and / or high speed mix-
ture too rich, incorrect fuel mixture
ratio, wrong type of spark plug (heat
range). or excessive idling.
• A light grey insulator tip indicates a
lean mixture caused by; carburetor
high speed mixture adjusted too
lean, wrong spark plug heat range,
incorrect fuel mixture ratio, or a
leaking seal or gasket.
Norrr1Jl (brcwrusn)
_
CAUTION: If spark plug condi-
.". tion is not ideal, contact your au-
thorized dealer.
Check spark plug gap using a wire
feeler gauge.
Reinstall plugs and connect wires.
Check electrolyte level. Electrolyte le-
vel must be at upper level line on bat-
tery casing.
If necesary add distilled water. Battery
connections must also be free of corro-
sion. If cleaning is necessary remove
corrosion using a stiff brush then clean
with a solution of baking soda and
water. Rinse and dry well.
-
CAUTION: Do not allow cleaning
.". solution to enter battery. It will
destroy the chemical properties of the
electrolyte.
After reconnecting battery coat bat-
tery terminals and connectors with pe-
troleum jelly to prevent corrosion.
Check that battery is well secured and
that battery overflow tube is not bloc-
ked or kinked.
+
W A RNING: Overflow tube must
be free and open. A kinked or
bent tube will restrict ventilation and
create gas accumulation that could
result in an explosion. Avoid skin con-
tact with electrolyte.
Visually inspect suspension springs.
Replace any weak or broken spring. If
vehicle is equipped with a slide sus-
pension, inspect shoe condition and re-
place as necessary.
O
NOTE: During normal driving,
snow will act as a lubricant and
coolant for the slider shoes. Extensive
riding on ice or sanded snow, (not to
mention dirt. asphalt, etc. never re-
commended) will create excessive heat
build-up and cause premature slider
shoe wear.
17

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