PIAGGIO Vespa 125 1955 Manual Para Estaciones De Servicio página 40

MA I N ENGINE FAULTS AND THE I R PROBABLE CAUSES
CA�URETTOR FLOAT
CHAMBER BLOCKED
OR WORN
ENGIN E FLOODED
I
I
SPARKING PLUG W[T
REPEATED KI C k-DVER
CHOKE OR STARTER
PUSH PULL ADO OPEN IN TH[ CASE
WHEN ENGINE IS WARM TIVE IGNIT I O N
CYL I N DER HEAD ANO
LACK
SPARKING PLUG NOT
CORRECTLY MOUNTED L-----�---1DECREASE I N
CHOKE OR STARTER R O
OPEN WHEN RUNNING-l4--- - --- -- -----1 PfRf"O RMANC E
AI R fll TER DI R TY -
DErECTIVE (ARBURATION
RUNN ING-IN NOT CAR­
RIED OUT ACCORDI N G SEI Z URE AND WEAR
TO INSTRUCTI O NS
COOLING SYSTEM N:r -
OVERHEATING
flCIENT OR CYLINDER
FINS DIR TY
INSUFFICIENT OIL
IN GEAR BOX OR
INAPP ROPRIATE Oil
CLUTCH OR GEAR BOX
COMPONENTS DAMAGED
16
· - -------------· - -------· · · --· - · · ·
FUEL COCK CLOSED
OR INSUrFICIENT
run IN TAN K
STARTING USING STARTER
STARTIN G WITHOUT
AND THROTTLE
CHOKE OR STARTER
STARTING
or
DEFEC-14--- -- ---1
OIF"f"ICULTIES
or
COMPRESSION
POWER AND
DAMAGED ENGINE
-NOISINESS-
ORGANS
TRANSMISSION
CLUTCH SNATCHING OR
SLI PPING DAMAGED
BREATHER AND FUEL
LINES BLOCKE D OR
DI RTY
INSUFFICIENT FLOW
or
FUEL TO CARBU­
RETTOR
SPARK PLUG NOT SPAR
1---------KING OR SPARKI N G IR· ,_____ _____ __
REGULARLY
SLACKENING Of" BIG
ENO BEARING BUSHES
SEIZURt ANO WEAR
MAIN BEARI N GS OXDSEO
PISTON RINGS STICKI N G
- DIHICULT STARTING -
·OVER HEATING-
EXCESSIVE CARBON DE­
POSITS IN ENGINE, Mur ·
FLER,SPARKING PLUG
or
THE
GEARS SUPPI N G AUTO­
MAT ICALL V
-- ·
·-·--·-·-·�---··•
.
SPARKING PLUG UNSUI­
TABl.E, COATED OR
WORN DR ELECTRODES
CARBURETTOR IJISTRI B U·
I N CORRECTLY A US TEO
TION CHANNELS BLOCK -
ED OR DIRTY
H T. CABLE OR SPARK
PLUG CAP FRAYED OR
WORN
rLYWHEEL RO TOR
DEMAGNETIZED
BATTERY D ISCHARGED
OR NOT CONNECTED,
RECTlflEA WORN
ENGINES WITH ROTARY
DI S TRI B UTI O N : VALVE
SEATI N G DAMAGED
CONDENSER DAMAGED
ENGINE RUNN -
ING WITH I N AP­
PROPRIATE OIL
O'I WITH Oil¾
LOWER THIIN
H. T. COIL DAMAGED
PRESCRIBED
H.T. COIL HOUSING OR
EXCESSIVE Oil
LI O DAMAGED
I N MIXTURE OR
OIL OCNSER
THAN THAT
PRESCRIBED IGNITION TIMING
INCORRECT
SELEC.TO!l UNIT INSUr­
COMPONENTS or SELE
CTOR UNIT WORN OR
rlCIENTLY LUBRICATED
DAMAGED
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