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Cause Remedy
IRREGULAR WORKING AT FULL SPEED
- Fuel supply is insufficient
- Dirty max jet weak mixture
- Dirty carburetor
- Water in the carburetor
- Ignition system’s failure
- Check the air cleaner.
- Check the fuel pipe’s integrity.
- Check the correct operation of the vacuum-operated
cock.
- Check the fillercap’s correct operation (suction).
- Wash the jet with premium petrol and dry with compres-
sed air
- Disassemble completely, wash with premium petrol and
dry with compressed air.
- Empty the float chamber.
- Carry out the controls described under chapt.2.
Cause Remedy
IRREGULAR WORKING ON SLOW RUNNING
- Dirty minimum jet
- The starting device remains opened
- The lamellar valve will not close
- Ignition system’s failure
- Wash with premium petrol and dry with compressed air.
- Check the electrical connections, continuity and mechanical
slide.
- Check, replace the lamellar pack.
- Carry out the controls described under chapter 2.
Cause Remedy
HIGH CONSUMPTION
- Dirty air cleaner
- Inefficient starting device
- Inadequate carburation
- Clean
- Check the electrical connections, continuity and mecha-
nical slide
- Reset correct carburation
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