T302
MAINTENANCE
X7502350700
33
© 4/2018 ECHO Inc.
ENGLISH
3.
Use a wood or plastic scraping tool to clean deposits from cylinder
exhaust port (B).
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 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.
When carburetor adjustment is completed, the cutting
attachment should not move at idle, otherwise serious personal
injury may result.
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 330 m (1100 ft.) above sea level (ASL) (96.0
kPa). To maintain proper engine operation above 330 m (1100 ft.) ASL the
carburetor may need to be adjusted by an authorized service dealer.
A
B
