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Spark Plug - Craftsman 125B Operator's Manual

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MAINTENANCE
Spark plug
The spark plug condition
is influenced by:
• Incorrect
carburetor
adjustment.
• An incorrect fuel mixture
(too much or in-
correct type of oil).
• Poor quality gasoline
and/or oil
• A dirty air fitter.
These factors cause deposits
on the spark
plug electrodes,
which may result in operat-
ing problems
and starting
difficulties.
If the machine
is low on power, difficult
to
start or runs poorly at idle speed: always
check the spark
plug first before taking
any further action, if the spark
plug is dirty,
clean it and check that the electrode
gap is
0.024"
(0.6 mm) The spark plug should
be
replaced
after about a month in operation
or
earlier if necessary.
0.024" (0.6 ram)
CAUTION!
Always
use the recommended
spark p_ug typet Use of the wrong
spark
plug can damage
the piston/cylinder.
Maintenance
schedule
Below you will find some general mainte-
nance instructions.
Daily
maintenance
• Clean the exterior surfaces
of the blower.
• Check that the variable
speed control and
the throttle trigger function
in a safe man-
ner. Replace
damaged
parts.
• Check that the stop switch
works proper-
ly. Replace
if necessary.
• Clean the air filter
Replace if necessary
• 125Bx
SER+ESand 125BV x SERIES:
Check that the inlet cover can be locked
in the closed position.
Carefully
check
that the fan impeller
is clean, especially
if
the blower
has been used for collecting
debris (vacuuming).
• Check that all nuts and screws
are prop-
edy tightened.
• Check that a_l the housings
are free of
cracks
Replace damaged
parts.
• 125Bx
SER]ES and 125BV x SERIES:
Check that the collection
bag is intact and
that the zipper works
Replace
it if neces-
sary.
Weekly
maintenance
• Check the condition
of the starter device,
the starter cord and the tensioning
spring.
Replace damaged
parts.
• Check the condition
of the air intake at
the starter device.
Remove debris if it is
clogged.
• Clean the outside
of the spark plug. Re-
move it and check the electrode
gap Ad-
just the gap to 0.024" (0.6 mm), or
replace
the spark plug
Use resistor
spark
plug Champion
RCJ-8Y
or equivalent.
• Clean the fan blades
on the flywheel
• Clean or replace the spark
arresting
screen
(not on mufflers with a catalytic
converter).
• Clean the carburetor
area.
• Clean the air filter.
Monthly
maintenance
• Clean the fue_ tank.
• Clean the outside
of the carburetor
and
the area around it.
• Clean the fan blades
on the flywheel
and
the area around
it.
• Check fuel lines for cracks
or other dam-
age. Change
if necessary.
• Change the fuel fitter in fuel tank.
• Check all cables
and connections.
Re-
place damaged
parts.
• Replace the spark plug
Use spark plug
Champion
RCJ-8Y
or equivalent.
• Change the air fitter.
54-5154658
Rev. 5
7/15/08
English-18

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This manual is also suitable for:

125bx series125bv series125bvx series