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EB910 / RT
3.
Use a wood or plastic scraping
tool to clean deposits from
cylinder exhaust port.
Never use a metal tool to scrape carbon from the exhaust port. Do
not scratch the cylinder or piston when cleaning the exhaust port. Do
not allow carbon particles to enter the cylinder.
4.
Inspect muffler gasket, and replace if damaged.
5.
Install muffler gasket and muffler.
6.
Tighten muffler mounting bolts (or nuts) to 110-150 kgf•cm
(95-130 lbf•in).
7.
Install engine cover and attach spark plug lead.
8.
Start engine, and warm to operating temperature.
9.
Stop engine, and re-tighten mounting bolts (or nuts) to specifications.
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 335 m (1,100 ft.) above sea
level. To maintain proper engine operation and emission compliance above
335 m (1,100 ft.) ASL the carburetor may need to be adjusted by an
authorized service dealer.
X7501200801
© 09/22 ECHO Incorporated
MAINTENANCE
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