11. Tr
oubleshooting guide
10. Disposal
9. Storage
Aged fuel is one of major causes of engine star
ting fail-
ure. Before storing the unit, empty the fuel tank and run
the engine until it uses all the fuel left in the fuel line and
the carburetor. Store the unit indoor taking necessary
measures for rust prevention.
Case 1. Starting failure
CHECK PR
OBABLE CAUSES ACTION
fuel tank → incorrect fuel → drain it and use corr
ect fuel
fuel filter → fuel filter is clogged → clean
carburetor adjustment scr
ew → out of normal range → adjust to normal range
sparking (no spark) → spark plug is fouled/wet → clean/dry
→ plug gap is incorr
ect → correct (GAP: 0.6 ~ 0.7 mm)
spark plug → disconnected → r
etighten
Case 2. Engine star
ts but does not keep running/hard re-starting
CHECK PR
OBABLE CAUSES ACTION
fuel tank → incorrect fuel or staled fuel → drain it and use corr
ect fuel
carburetor adjustment scr
ew → out of normal range → adjust to normal range
muffler
, cylinder (exhaust port) → carbon is built-up → wipe away
air cleaner → clogged with dust → wash
cylinder fin, fan cover → clogged with dust → clean
When disposing your machine, fuel or oil for the machine,
be sure to allow your local r
egulations.
GB 18
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