Os-engines 18TZ(S)-T Manuale Utente Scaricare il pdf (Pagina 14)

CARBURETOR CONTROLS (11L)

Needle Valve

Throttle Stop

Screw

Mixture Control Valve

Thermo Insulator

Three adjustable controls are provided on

this carburetor.

The Needle-Valve:

For adjusting the mixture strength when the

throttle is fully open.

The Mixture Control Screw:

For adjusting the mixture strength at part-

throttle and idling speeds, to obtain steady

idling and smooth acceleration to mid

speeds.

The Throttle Stop Screw:

For setting the minimum idling speed:

NOTE: Readjustment may be necessary,

occasionally to allow for changes in fuel

formula, gear ratio or clutch engagement

point.

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