3-4 MAIN_EN_E
Air Cleaner Service
Do not run He engi_ _th the air cleaner
removed.
Paper Element
Cleanthe paper element(B) evew 100 hours.
• Clean the element by taping gently to re_ve
dust. If veryd_y, repiacetf'_ elerr_t witha new
one.
• Replacewitha newpa_r - elementyearly_ 200
hours_Whiche_r comesflrsL
Foam Elem_
Clean the foam element (A) _25 hours.
• Wash the element in detergent and water, and d_
NOTE
oOpereUng in a dustycondit_ may require more
frequentmaintenancethanabove.
Do not wash po_r-elen-mnt
Do _ oil pa_r or foam element.
Do not use pressud_ airto clean paper-el-
ement
MAINTENANCE 35
Fuel Filter and Fuel Pump Service Spark Plug Service
Improper use of solvents can result in fire or
an explosion.
Do not use gasoline or low flash-point sol-
vents to clean the fuel filter andlor the fuel
pump,
Clean only in a well ventilated area away from
sources of sparks or flame, including any ap-
pliances with a pilot light.
• The fuel filter can notbe disassembled,Ifthe foe[
filtergetsclogged,replace itwitha new one.
• Thefuel pumpcan notbe disassembled.Ifthe fuel
pumpfails, replaceit with a new one,
Hot engine components can cause severe
burns,
Stop engine and allow itto cool before check-
ing spark plugs.
Cleanorreplacethe sparkplugsand resetgap(A)
every 100 hoursof operation.
• Disconnectthe sparkplugcaps from sparkplugs
and removethe sparkplugs.
• Cleantheelectrodes(B) byscrapingorwitha wire
brushto removecarbondeposits.
• Inspectfor cracked porcelainor other wear and
damage, Replace the spark plugwitha new one
ifnecessary.
• Check the spark pluggap and reset it if neces-
saw. The gap must be 0.75 mm (0.030 in). To
changethe gap, bendonlytheside-electrode, us-
inga sparkplugtool
• Installandtightenthe sparkplugsto 22 N_m(2.2
kgf.m,16 ft'lb),
• Fit the spark plug caps on the spark plugsse-
curely.
• Pull up the sparkplug caps lightlyto make sure of
the installationof the spark plugcaps.
RECOMMENDED SPARK PLUG
NGK .................................. BPR4ES
48
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