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9. Maintenance
every every every
25 50 100
system/compornent procedure before hours hours hours note
use after after after
fuel leaks, fuel spillage wipe out ✔
fuel tank, air filter, fuel filter inspect/clean ✔✔ replace, if necessary
see
■ADJUSTING
replace carburetor
idle adjusting screw ✔
IDLING SPEED (p.23)
if necessary
clean and readjust
GAP: .025in(0.6~0.7mm)
spark plug ✔
plug gap replace, if necessary
cylinder fins, intake air cooling vent clean ✔
muffler, spark arrester, cylinder exhaust port
clean ✔
throttle lever, ignition switch check operation ✔
replace if EX-BC, EX-LRT,
cutting parts ✔
something's wrong EX-HE
gear case grease ✔
screws/nuts/bolts tighten/replace ✔✔not adjusting screws
debris guard make sure to attach ✔ EX-BC, EX-HE
oiling port clean ✔ EX-PS only
guide bar clean ✔ EX-PS only
sprocket inspect/replace ✔ EX-PS only
saw chain inspect/sharp ✔ EX-PS only
■ MAINTENANCE CHART
ENGINE
SHAFT
CUTTING UNIT
Maintenance, replacement, or repair of the emission control device and systems may be
performed by any non-road engine repair establishment or individual.