Troubleshooting; Chain Sharpening - Husqvarna 136 / 141 Operator's Manual

CHAIN SHARPENING

Chain sharpening is a complicated task that
requires special tools. We recommended
you refer chain sharpeningto a professional
chain sharpener.
IGNITION TIMING
Ignition timing is fixed and nonadjustable.
SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better.
S Loosen 3 screws on cylinder cover.
S Remove the cylinder cover.
S Pull off the spark plug boot.
S Remove spark plug from cylinder and dis-
card.
S Replace with Champion RCJ--7Y spark
plug and tighten with a 3/4 inch socket
wrench (10-12 ft/lbs). Spark plug gap
should be 0.025 inches.
S Reinstall the spark plug boot.
S Reinstall the cylinder cover and 3 screws
(15-20 in/lbs).
TROUBLESHOOTING TABLE
WARNING:
Always stop unit and disconnect spark plug before performing all of
the recommendedremedies below except remedies that require operationof the unit.
TROUBLE
CAUSE
Engine will not
S Ignition switch off.
start or will run
S Engine flooded.
only a few
seconds after
S Fuel tank empty.
starting.
S Spark plug not firing.
S Fuel not reaching
carburetor.
Engine will
S Carburetor requires
not idle
adjustment
properly.
S Crankshaft seals worn.
Engine will not
S Air filter dirty.
accelerate, S Spark plug fouled.
lacks power,
or dies under
S Carburetor requires
a load.
adjustment.
Engine
S Too much oil mixed with
smokes
gasoline.
excessively.
Spark Plug Boot
14
STORAGE
WARNING:
Stop engine and allow
to cool, and secure the unit before storing or
transporting in a vehicle. Store unit and fuel
in an area where fuel vapors cannot reach
sparks or open flames from water heaters,
electric motors or switches, furnaces, etc.
Storeunit withall guards in place. Positionso
that any sharp object cannot accidentally
cause injury to passersby. Store the unit out
of reach of children.
S Before storing, drain all fuel from the unit.
Start engine and allow to run until it stops.
S Clean the unit before storing. Pay particu-
lar attention to the air intake area, keeping
it free of debris. Use a mild detergent and
sponge to clean the plastic surfaces.
S Do not store the unit or fuel in a closedarea
where fuel vapors can reach sparks or an
openflame from hot water heaters,electric
motors or switches, furnaces, etc.
S Store in a dry area out of the reach of chil-
dren.
CAUTION
: It is important to prevent gum
deposits from forming in essential fuel sys-
tem parts such as the carburetor, fuel filter,
fuel hose, or fuel tank during storage. Alco-
hol blended fuels (called gasohol or using
ethanol or methanol) can attract moisture
which leads to fuel mixture separation and
formationof acids during storage. Acidic gas
can damage the engine.
REMEDY
S Move ignition switch to ON.
S See "Difficult Starting" in
Operation Section.
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 replace.
S Contact an Authorized Service Dealer.
S Contact an Authorized Service Dealer.
S Clean or replace air filter.
S Clean or replace plug
and regap.
S Contact an Authorized Service Dealer.
S Empty fuel tank and refill with
correct fuel mixture.