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11. Troubleshooting guide
Case 1. Starting failure
CHECK
PROBABLE CAUSES
ACTION
fuel tank
➞
incorrect fuel
➞
drain it and with correct fuel
fuel filter
➞
fuel filter is clogged
➞
clean
carburetor adjustment screw
➞
out of normal range
➞
adjust to normal range
sparking (no spark)
➞
spark plug is fouled/wet
➞
clean/dry
➞
plug gap is incorrect
➞
correct (GAP: 0.6~0.7mm)
spark plug
➞
disconnected
➞
retighten
Case 2. Engine starts but does not keep running/Hard re-starting.
CHECK
PROBABLE CAUSES
ACTION
fuel tank
➞
incorrect fuel or staled fuel
➞
drain it and with correct fuel
carburetor adjustment screw
➞
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 your unit seems to need further service, please consult with our ZENOAH service shop in your area.
10. Storage
• Aged fuel is one of major causes of engine
starting failure. 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.
12. Disposal
• When disposing your machine, fuel or oil for the
machine, be sure to allow your local
regulations.rust prevention.