Adjusting The Carburetor - Homelite UT10548 Operator's Manual

CLEANING THE STARTER UNIT
See Figure 63.
Use a brush or compressed air to keep the cool-
ing vents of the starter assembly free and clean
of debris.

ADJUSTING THE CARBURETOR

See Figure 64.
Before adjusting the carburetor:
 Use a brush or compressed air to clean the
starter cover vents.
 Clean the air filter. Refer to Cleaning the Air Fil-
ter in the Maintenance section of this manual.
 Allow the engine to warm up prior to adjustment
of engine idle speed.
WARNING:
Weather conditions and altitude may affect
carburetion. Do not allow bystanders close to
the chain saw while adjusting the carburetor.
Idle Speed Adjustment —The idle speed adjust-
ment controls how much the throttle valve stays
open when the throttle trigger is released. To
adjust:
 Turn idle speed screw "T" clockwise to increase
idle speed.
 Turn idle speed screw "T" counterclockwise to
decrease idle speed.
WARNING:
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Serious personal injury may result from
the saw chain turning at idle.
CLEANING THE ENGINE
See Figures 65 - 68.
Clean the cylinder fins and flywheel fins with
compressed air or a brush periodically. Danger-
ous overheating of the engine may occur due to
impurities on the cylinder.
MAINTENANCE
IDLE SPEED
SCREW "T"
Never run the saw without all the parts, including
the clutch cover and starter housing, securely
in place.
Because parts can fracture and pose a danger
of thrown objects, leave repairs of the flywheel
and clutch to factory trained authorized service
center personnel.
Page 34 — English
CYLINDER
COVER
WARNING
STARTER COVER
VENTS
Fig. 63
Fig. 64
SCREWS
Fig. 65