Ryobi P546A User Manual - Page 35

Adjusting The Carburetor, Warning, Cleaning The Starter Assembly

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MAINTENANCE ADJUSTING THE CARBURETOR See Figures 62 - 64. 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 muffler. Failure to follow these instructions could result in serious personal injury. Before adjusting the carburetor: n Use a brush or compressed air to clean the starter cover vents. n Clean the air filter. Refer to Cleaning the Air Filter in the Maintenance section of this manual. n 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 adjustment controls how much the throttle valve stays open when the throttle trigger is released. To adjust: n Turn idle speed screw "T" clockwise to increase idle speed. n Turn idle speed screw "T" counterclockwise to decrease idle speed. STARTER COVER VENTS STOP CLEAN AIR FILTER Fig. 62 Fig. 63 IDLE SPEED SCREW "T" WARNING: THE SAW CHAIN SHOULD NEVER TURN AT IDLE. Serious personal injury may result from the saw chain turning at idle. Fig. 64 CLEANING THE STARTER ASSEMBLY See Figure 63. Use a brush or compressed air to keep the cooling vents of the starter assembly free and clean of debris. Page 35 - English

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Page 35 — English
STOP
IDLE SPEED
SCREW “T”
ADJUSTING THE CARBURETOR
See Figures 62 - 64.
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.
Fig. 64
CLEAN
AIR FILTER
STARTER
COVER VENTS
Fig. 63
Fig. 62
MAINTENANCE
CLEANING THE STARTER ASSEMBLY
See Figure 63.
Use a brush or compressed air to keep the cooling
vents of the starter assembly free and clean of
debris.