Mountfield SV150 Especificaciones descargar pdf (Pagina 27)

6.6 IGNITION SYSTEM

GENERAL INFORMATION

The ignition system has a flywheel with an electron-

ic coil which supplies high voltage to the spark plug.

The starting system can malfunction in the following

ways:

• the engine does not start (if not due to another

cause):

= no spark on the spark plug due to a faulty coil

[ 6.6.A

];

= coil to earth [ 6.6.B

and 6.7.B];

= incorrect adjustment of the air gap [ 6.6.B

];

= faulty spark plug or wrong distance between

the electrodes [ 6.6.A

];

= oxidized or loose contacts [ 6.6.B

• the engine runs irregularly (if not due to another

cause):

= incorrect adjustment of the air gap [ 6.6.B

];

= oxidized or loose contacts [ 6.6.B

For access to the coil and the flywheel, remove the

upper conveyor.

SERVICING PROCEDURES

A) Checking the efficiency of the ignition sys-

tem

1 Dismount the spark plug (1) and look at the

colour on the end of the thread. This can give

you a good idea of the carburation:

– black = mixture too greasy due to clogged air

filter;

– nut brown = regular carburation.

Replace the spark plug if the electrodes (2) are

burnt or if the porcelain is broken or cracked.

WARNING! Fire hazard:

– do not check the ignition system if the spark

plug is not screwed in place;

– always use the specific tool for the spark test.

2 Connect the tester (3) to the spark plug cap (4)

0,6-0,8

SV 150

6.6.0

IGNITION SYSTEM

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Mountfield SV150 Especificaciones Pagina 27

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