Troubleshooting - Husqvarna 131RB Workshop Manual

9.1 Troubleshooting

Starting
The engine is hard to start
Idle speed (low speed)
The engine does not operate on
idle speed
The idle speed is too low
64 - Troubleshooting
9 Troubleshooting
The stop screw for the throttle does not operate correctly
Blocked fuel filter
Blocked fuel hose
Air in fuel pipes
Incorrect/unsatisfactory fuel
The needle valve is defective
The lever arm of the needle valve is damaged
The lever arm of the needle valve does not operate correctly
The control diaphragm is damaged
The control diaphragm has a defective seal
Blocked needle valve
The needle valve is worn
Object in the needle valve guide
The stop screw for the throttle does not operate correctly
Blocked fuel filter
Blocked fuel hose
Air in fuel pipes
The carburetor is not attached correctly
The lever arm of the needle valve does not operate correctly
Defective heat insulation seal
The lever arm of the needle valve is damaged
The lever arm of the needle valve is too high
The lever arm of the needle valve does not operate correctly
The needle valve is worn
Object in the needle valve guide
627 - 002 - 23.04.2018