83
EN
Translation of original owner's manual
9. TROUBLESHOOTING GUIDE
10. WASTE DISPOSAL AND ENVIRONMENTAL PROTECTION
Case 1. Starting failure
Case 2. Engine starts but does not keep running/hard re-starting
CHECK
PROBABLE CAUSES
ACTION
fuel tank
➝
incorrect fuel
➝
drain it and use 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
spark plug
➝
plug gap is incorrect
➝
correct (GAP: 0.6 ~ 0.7 mm)
➝
disconnected
➝
retighten
CHECK
PROBABLE CAUSES
ACTION
fuel tank
➝
incorrect fuel or staled fuel
➝
drain it and use 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
Never pour remainders of chain lubricant or 2-stroke fuel mixture in the drain or
sewerage system or soil, but dispose of it in a proper, environmentally friendly
way, e.g., at a special collecting point or dump.
If your device should become useless somewhere in the future or you do not
need it any longer, do not dispose of the device together with your domestic
refuse, but dispose of it in an environmentally friendly manner. Thoroughly
empty the oil/lubricant and fuel tanks and dispose of the remainders at a special
collecting point or dump. Please also dispose of the device itself at an according
collecting/recycling point. By doing so, plastic and metal parts can be separated
and recycled. Information concerning the disposal of materials and devices are
available from your local administration.
Summary of Contents for 620
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