Zenoah BCZ2500S Manuale Utente

12. 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 RedMax service shop in your area.

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