CS-4510
MAINTENANCE
X7503350603
41
© 06/2019 ECHO Incorporated.
IMPORTANT NOTE
- Time intervals shown are maximum. Actual use and
your experience will determine the frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
1 Low evaporative fuel tanks DO NOT require regular maintenance to
maintain emission integrity.
2 Model dependent
* 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 1,100 feet above sea level (ASL) (96.0 kPa). To
maintain proper engine operation above 1,100 feet ASL the carburetor may
need to be adjusted by an authorized service dealer.
Fuel Cap Gasket
Inspect *
1
Spark Plug
Inspect / Clean / Replace *
1
Muffler Spark Arrestor
Inspect/Clean/Replace *
2
Cylinder Exhaust Port
Inspect / Clean / De-carbon
2
Yearly
Fuel Filter
Inspect / Replace *
1
Fuel Cap Gasket
Replace *
1
Component / System
Maintenance Procedure
Req’d
Skill
Level
L
T
H