PIAGGIO Vespa 125 Super Operation And Maintenance page 29

1 – Lack of power – High
fuel consumption
Spark plug misfiring (see fig. 19 ).
check
Silencer (or engine) choked.
Sparking plug loose in the cyl.
head.
Cylinder head loose.
Air filter choked or dirty or choke
controlincorrectly set.
2 - Defective electrical equipment.
Wire terminals disconnected or
carelessly connected.
Headlight beam incorrectly set.
Defective bulbs.
Remedies
Notice:
When the carburettor is defective, the engine is lack in compression, noisy engine,
defective suspension and brakes, general mechanical failures, consult your Dealer.
When overhauling of the front suspension, grease the wheel bearings with FIAT JOTA 3
or SHELL ALVANIA 3 (or SHELL RETINAX A).
www.allstyles-scooters.com
VARIOUS RUNNING DEFECTS
Clean or substitute. Clean the contact breaker -
Check the electrode gap of the sparking plug;
the flywheel timing (see page 21).
Clean (see page 24).
Screw down with a wrench.
Set head accurately and tighten nuts.
Wash in neat petrol, air blast dry. Check choke
control mechanism.
Carefully check and connect.
Adjust (see page 22)
See page 22 for substituting.