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Engine
Cover
Screws
Engine Cover
Mufer
Mufer Gasket
Mufer Bolts
Spark Arrester Screen
Spark Arrester Cover
Cover Screws
With a 3 mm hex wrench remove the 1.
engine cover screws and the engine
cover.
If the engine becomes sluggish and low
on power, check and clean the spark
arrester screen.
IMPORTANT!
If you note excessive carbon buildup,
consult with an authorized servicing
dealer.
WARNING!
Never operate the unit with a
damage or missing mufer or spark
arrester! Operating with a missing or
damaged spark arrester is a re hazard
and could also damage your hearing.
With a 4 mm hex wrench, remove the 2.
3 mufer bolts and the mufer.
With a small at bladed screwdriver 3.
remove the 2 screws holding the
spark arrester screen and cover to the
mufer.
Remove the screen and clean it with a 4.
stiff bristle brush.
Inspect the cylinder exhaust port for 5.
any carbon buildup.
Reassemble the spark arrester, muf-6.
er and engine cover in the reverse
order of disassembly.
Carburetor Adjustment
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, emission, and durability performance up to
1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above
1,100 feet ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.
NOTE:
Every unit is run at the factory and the carburetor is set in compliance with
emission regulations. Carburetor adjustments, other than idle speed, must be
performed by an authorized Shindaiwa dealer..
IMPORTANT!
If the engine is adjusted for operation above 1,100 feet ASL, the carburetor
must be re-adjusted when operating the engine below 1,100 feet ASL, oth-
erwise severe engine damage may result.
Maintenance (continued)
Spark Arrester Screen Maintenance