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GB-12
EBZ4800 / EB7000
[EB7000]
1. Unscrew 2 knob bolts and remove the air cleaner cover.
Then remove a prefilter mounted inside the air cleaner
cover.
2. Wash the prefilter in fresh, non flammable cleaning solu-
tion (ex. warm soapy water) and then dry.
(Clean the air filter once in a week.)
3. Exchange the paper filter element with new one in case it
has been contaminated.
WARNING
• This prefilter is dry type.
• Never wash the prefilter in oleaginous cleaning solu-
tion.
• Do not clean a paper filter by striking it.
FUEL FILTER
•A clogged fuel filter may cause poor acceleration of the
engine. Check periodically to see if the filter is clogged
with dirt. The filter can be taken out of the fueling port us-
ing a small wire hook. Disconnect the filter assembly from
the fuel pipe and unhook the retainer to disassemble it.
Clean the components with gasoline.
SPARK PLUG
• The spark plug may gather carbon deposits on its
firing end with reasonable use. Remove and inspect
the spark plug every 25 hours and clean the elec-
trodes as necessary with a wire brush. The spark gap
should be adjusted to .025 in (0.6~0.7mm).
• Plug manufacturers recommend replacing the plug
twice a year to avoid unexpected plug failure in a job.
9. Maintenance
(1) Bolt
(2) Spark Arrester
(1) Screen (2) Element
(3) Holder (4) Retainer
(1) Knob Bolt
(2) Prefilter
(3) Paper Filter
REPLACEMENT PLUG
EBZ4800: NGK CMR7H / CHAMPION RZ7C
EB7000 : CHAMPION RCJ6Y
IMPORTANT
• Note that using any spark plugs other than those des-
ignated may result in the engine failing to operate
properly or in the engine becoming overheated and
damaged.
•To install the spark plug, first turn the plug until it is
finger tight, then tighten it a quarter turn more with a
socket wrench.
MUFFLER
WARNING
• Inspect periodically, the muffler for loose fasteners,
any damage or corrosion. If any sign of exhaust leak-
age is found, do not use the blower and have it re-
paired immediately.
• Note that failing to do so may result in the engine
catching on fire.
IMPORTANT
• Before starting operation, always make sure to check
if the muffler is properly held by three bolts to the cyl-
inder and crank case. (Fastening Torque : 8~12 N·m)
•Also make sure that the spark arrester and the dif-
fuser are properly attached with four bolts (Fastening
Torque : 2~3 N·m)
• Even if one of seven bolts is loose, it may result in
engine catching on fire.
SPARK ARRESTER
• The muffler is equipped with a spark arrester to pre-
vent red hot carbon from flying out of the exhaust out-
let. Periodically inspect and clean as necessary with
a wire brush. In the State of California it is required by
law (Section 4442 of the California Pulic Resources
Code) to equip a spark arrester when a gas powered
tool is used in any forest covered, bush covered, or
grass covered unimproved land.
NOTE
[EBZ4800]
Fit the Spark Arrester on the pipe and tightly fix with the
clip