
402S
MAINTENANCE
X7503256304
45
© 11/23 ECHO Incorporated
IMPORTANT NOTE
- Time intervals shown are maximum. Actual use and
your experience will determine the frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
* Replacement is recommended based on the finding of damage or wear
during inspection.
Carburetor Adjustment
Every unit is run at the factory and the
carburetor is set in compliance with emission
regulations. In addition, the carburetor is
equipped with “
H
” (High Speed) and “
L
” (Low
Speed) needle adjustment limiters that prevent
settings outside acceptable limits.
Engine Break-In
New engines must be operated a
minimum duration of two tanks of
fuel break-in before carburetor
adjustments can be made. During
the break-in period your engine
performance will increase and
exhaust emissions will stabilize. Idle
speed can be adjusted as required.
High Altitude Operation
This engine has been factory
adjusted to maintain satisfactory
starting and durability performance
up to 335 m (1,100 ft.) above sea level (ASL)
(96.0 kPa). To maintain proper engine operation above 335 m (1,100 ft.)
ASL the carburetor might need to be adjusted by an authorized service
dealer.
Cylinder Exhaust Port
Inspect / Clean / De-carbon
2
Yearly
Fuel Filter
Inspect / Replace *
1
Fuel Cap Gasket
Replace *
1
COMPONENT OR SYSTEM
MAINTENANCE
PROCEDURE
REQUIRED
SKILL
LEVEL
T
L
H
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Страница 62: ...NOTES 402S 62 X7503256304 11 23 ECHO Incorporated NOTES...
Страница 63: ...402S NOTES X7503256304 63 11 23 ECHO Incorporated...
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