Troubleshooting - Buffalo B52BCQ User Manual

GASOLINE BRUSH CUTTER / B52BCQ

10. TROUBLESHOOTING

Problem Check
fuel at
carburetor
fuel at cylinder
Engine
cranks-
starts
spark at end
hard/
of plug wire
does not
start
spark at plug
air filter
fuel filter
fuel filter
Engine
runs
spark plug
but dies
or
does not
carburetor
accelerate
properly
cooling system
spark arrestor
screen
Engine
does not N/A
crank
Fuel vapors are extremely flammable and may cause fire and or explosion. Never test for ignition
spark near an open spark plug opening otherwise serious personal injury may result
Engine problem troubleshooting chart
Status
no fuel at fuel strainer clogged
carburetor fuel line clogged
carburetor
no fuel at cylinder carburetor
muffler wet with
fuel mixture too rich
fuel
slop switch off
no spark electrical problem
interlock switch
spark gap incorrect
covered with carbon
No spark
fouled with fuel
plug defective
air filter dirty normal wear
contaminants
fuel filter dirty residues
in fuel
contaminants
fuel vent plugged residues
in fuel
plug dirty worm normal wear
improper
vibration
adjustment
extended operation
excessive
in
dirt/debris
dirt/dusty locations
screen cracked
plugged or normal wear
perforated
internal engine
N/A
problem
Warning danger
Cause
clean or replace
clean or replace
see dealer
see dealer
open choke
clean replace air filter
adjust carburetor
turn switch to ON
see dealer
see dealer
adjust to .65mm
clean or replace
clean or replace
replace plug
clean or replace
replace
clean or replace
clean and adjust or
replace
adjust
clean
replace
see dealer
Page 14
Remedy