Zenoah BT251 ユーザーズマニュアル





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

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. 

• 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.

• When disposing your machine, fuel or oil for the

machine, be sure to allow your local
regulations.rust prevention.