Os-engines 18TZ(S)-T Manuale Utente Scaricare il pdf (Pagina 13)

CARBURETOR CONTROLS (11K)

Needle Valve

Mixture Control Valve

Metering Needle

Throttle Stop

Screw

Thermo Insulator

Four adjustable controls are provided on

this carburetor.

The Needle-Valve:

For adjusting the mixture strength when the

throttle is fully open.

The Mixture Control Valve:

For changing the mixture strength at mid

speed and acceleration. (Do not rotate the

screw more than one turn.)

The Metering Needle:

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 idle speed:

NOTE: Readjustment may be necessary,

occasionally to allow for changes in fuel

formula, gear ratio or clutch engagement

point.

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