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5
SERVICE
We recommend all service and adjustments
not listed in this manual be performed by an
Authorized Service Dealer.
CARBURETOR ADJUSTMENTS
Your carburetor is equipped with limiter caps.
Carburetor adjustment is a complicated task.
We recommend that you take your unit to an
Authorized Service Dealer. Damage will oc-
cur if you turn the needles beyond the limiter
stops.
IGNITION TIMING
The ignition timing is fixed, non-adjustable.
SPARK PLUG
Replace the spark plug yearly using a Cham-
pion RCJ--8Y plug. Spark plug gap i s 0.025”.
TROUBLE CAUSE REMEDY
Engine will not
start.
S
Engine flooded.
S
Fuel tank empty.
S
Spark plug not firing.
S
Fuel not reaching carburetor.
S
Carburetor requires adjustment.
S
See “Starting.”
S
Fill tank with correct fuel mixture.
S
Install new spark plug.
S
Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or r eplace.
S
See “Carburetor Adjustments.”
Engine will not
idle properly.
S
Carburetor requires adjustment.
S
Throttle trigger screw too
tight.
S
See “Carburetor Adjustments.”
S
Loosen screw.
S
Air filter dirty.
S
Spark plug fouled.
S
Carburetor requires adjustment.
Engine will not
accelerate,
lacks power,
or dies under
a load.
S
Clean or replace air filter.
S
Clean or replace spark plug; re-gap.
S
See “Carburetor Adjustments.”
Engine
smokes
excessively.
S
Fuel mixture incorrect.
S
Air filter dirty.
S
Carburetor requires adjustment.
S
Empty fuel tank and refill with
correct fuel mixture.
S
Clean or replace air filter.
S
See “Carburetor Adjustments.”
Line does not
advance or
breaks while
cutting.
S
Line improperly routed in head.
S
Line improperly wound on
spool.
S
Line size incorrect.
S
Check line routing.
S
Rewind line tightly and evenly.
S
Use only 0.080” (2 mm) dia. line.
TROUBLESHOOTING TABLE
WARNING:
Always stop unit and disconnect spark plug before performing any ofth
e
recommended remedies below other than remedies that require operation of the unit.
Line welds
onto spool.
Line pulls
back into
head.
S
Line size incorrect.
S
Incorrect spool.
S
Line is being crowded against
material being cut.
S
Use only 0.080” (2 mm) dia. line.
S
Replace with correct spool.
S
Cut with tip of line fully extended.
S
Too little line outside of head.
S
Line size incorrect.
S
Remove spool and pull 4 inches
(10 cm) of line outside of head.
S
Use only 0.080” (2 mm) dia. line.