Adjusting The Carburetor - Ryobi RY3818 Manuel D'utilisation

ADJUSTING THE CARBURETOR

See Figures 59 - 60.
WARNING:
The chain will move around the guide bar when
adjusting the idle speed. Wear all protective
clothing and keep all bystanders, children, and
pets at least 50 ft. away. Make adjustments
with the unit supported on a stable surface so
that the chain/guide bar does not contact the
ground or any object. Keep all parts of your
body away from the chain/guide bar and muf-
fler. Failure to follow these instructions could
result in serious personal injury.
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
Filter 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.
MAINTENANCE
Page 34 — English
STARTER
COVER VENTS
Fig. 59
IDLE SPEED
SCREW "T"
Fig. 60