Adjusting The Carburetor - Ryobi RY10520 Manual Del Operador

 Clean the pre-filter every 5 hours of use or
sooner, if required. Remove the cylinder cover,
starter assembly, and the fan housing baffle for
access to the pre-filter in the engine housing.
NOTE: If you use an air hose for drying, blow
through both sides of filter.
CAUTION:
Make sure the air filter is correctly placed in the
air filter cover before reassembly. Never run the
engine without the air filter, serious damage
could result.
CLEANING THE STARTER UNIT
See Figure 65.
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 65 - 66.
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.
MAINTENANCE
THE SAW CHAIN SHOULD NEVER TURN AT
IDLE. Serious personal injury may result from
the saw chain turning at idle.
Page 34 — English
STARTER COVER
VENTS
WARNING:
AIR FILTER
Fig. 64
Fig. 65
IDLE SPEED
SCREW "T"
Fig. 66