Carburetor Adjustment - Echo SRM-2620U Operator's Manual

MAINTENANCE
4. Inspect heat shield, and
replace if damaged.
5. Install heat shield and
muffler.
6. Tighten muffler mounting
bolts (or nuts) to 90-110
kgf•cm (80-95 in•lbf).
7. Install muffler 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

Level 2.
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.
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, otherwise severe engine damage may result.
Parts Required:
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 ECHO dealer.
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None
SRM-2620U
X7502341900
© 10/2016 ECHO Inc.