Ryobi RY10520 Cleaning The Starter Unit, Adjusting The Carburetor, Maintenance, See Figure

MAINTENANCE

nClean 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:

n Use a brush or compressed air to clean the

AIR FILTER

Fig. 64

STARTER COVER

starter cover vents.

n Clean the air filter. Refer to Cleaning the Air Fil-

ter in the Maintenance section of this manual.

n Allow the engine to warm up prior to adjustment

of engine idle speed.

WARNING:

VENTS

Fig. 65

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:

nTurn idle speed screw “T” clockwise to increase idle speed.

nTurn idle speed screw “T” counterclockwise to decrease idle speed.

IDLE SPEED

SCREW “T”

Fig. 66

WARNING:

THE SAW CHAIN SHOULD NEVER TURN AT IDLE. Serious personal injury may result from the saw chain turning at idle.

Page 34 — English