Troubleshooting; Troubleshooting The Blower - Stihl BR 500 Instruction Manual

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18 Troubleshooting

18.1 Troubleshooting the Blower

Most problems can be attributed to the same cause.
► Carry out the following measures:
► Replace the air filter.
► Clean or replace the spark plug.
► Adjust saw for winter or summer operation.
► Adjust the idle speed.
► If the problem continues: Carry out the measured listed below.
Fault
The engine does not start. There is not enough fuel in
The engine idles
erratically.
The engine stops while
idling.
The engine does not reach
maximum speed.
20
Cause
the fuel tank.
The carburetor is too hot. ► Allow the blower to cool down.
The carburetor has iced
up.
The carburetor has iced
up.
The carburetor has iced
up.
Throttle cable adjustment
is not correct.
Remedy
► Mix the fuel and refuel the blower.
► Depress the manual fuel pump at least 10 times before starting the
engine.
► Allow the blower to warm up to + 10 °C.
► Allow the blower to warm up to + 10 °C.
► Allow the blower to warm up to + 10 °C.
► Adjust the throttle cable.
18 Troubleshooting
0458-452-0121-H