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SKILL LEVELS
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate diffi culty. Some specialized tools may be required.
CONPONENT/
SYSTEM
Air Filter
Choke Shutter
Fuel Filter
Fuel Cap Gasket
Fuel System
Spark Plug
Cooling System
Muffl er Spark Arrestor
Cylinder Exhaust Port
Recoil Starter Rope
Screws/Nuts/Bolts
MAINTENANCE PROCEDURE LETTER CODES:I=INSPECT, R=REPLACE,C=CLEAN
IMPORTANT NOTE-Time intervasls shown are maximum.Actual use and your experience will determine the
frequency of required maintenance.
MAINETENANCE PROCEDURE NOTES:
(1)Low evaporative fuel tanks DO NOT require require maintenance to maintain emission integrity
*All recommendations to replace are based on the fi nding of damage or wear during inspection.
EMISSION CONTROL
(EXHAUST and EVAPORATIVE)
EPA 2010 and Later and/or C.A.R.B. TIER III
The emission control system for the engine is EM
(engine modifi cation) and, if the second to last
character of the Engine Family on the Emission
Control Information label (sample below) is "C",
"K", or"T", the emission control system is EM
and TWC (3-way catalyst). The fuel tank/fuel line
emission control system is EVAP (evaporative
emissions).
Evaporative emissions for California models may
only be applicable to fuel tanks.
An Emission Control Label is located on the
engine. (This is an example only, information on
label varies by engine family).
MAINTENANCE
PROCEDURE
Inspect/Clean
Inspect/Clean
Inspect/Replace
Inspect/Replace
Inspect/Replace
Inspect/Clean/Replace
Inspect/Clean
Inspect/Clean/Replace
Inspect/Clean/Decarbon
Inspect/Clean
Inspect/Tighen/Replace
EMISSION DATA
DAILT OR
REQ'D
SKILL
BEFORE
LEVEL
USE
1
I/C*
1
I/C
1
1
1
I(1)*
1
2
I/C
2
2
1
I/C*
1
I*
IMPORTANT
Time intervals are maximum. Actual use and
your experience will determine the frequency
of required maintenance.
Record dates of monthly and yearly
inspections.
PRODUCT EMISSION DURABILITY (EMISSION
COMPLIANCE PERIOD)
The 300 hours emission compliance period is
the time span selected by the manufacturer
certifying the engine emissions output meets
applicable emissions regulations, provided that
approved maintenance procedures are followed
as listed in the Maintenance Section of this
manual.
12
EVERY
3 MONTHS
REFUEL
OR 90
HOURS
R*
I*
I*
I(1)*
I/C/R*
I/C/R*
I/C
YERLY
600
HOURS
I/R*
R
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