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9. Maintenance
English
CLEANING AIR FILTER:
1. Unscrew 2 knob bolts and remove the air cleaner
cover. Then remove a prefilter mounted inside the air
cleaner cover.
(1) Knob Bolt
(2) Prefilter
(3) Paper Filter
2. Wash the prefilter in fresh, non flammable cleaning
solution (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.
• This prefilter is dry type.
• Never wash the prefilter in oleaginous cleaning
solution.
• 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 using a small wire hook. Disconnect the
filter assembly from the fuel pipe and unhook the
retainer to disassemble it. Clean the components
with gasoline.
(1) Screen
(2) Element
(3) Holder
(4) Retainer
■
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
electrodes 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.
REPLACEMENT PLUG IS A NGK CMR7H.
WARNING
F19
F20
F18
