Main System; Intermediate System - Suzuki RM-Z250 Owner's Service Manual

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MACHINE TUNING

MAIN SYSTEM

MAIN JET (M.J.)

The main jet, like the slow jet, meters fuel flow. Each jet size is

indicated by a number. Larger number means a larger bore

diameter and fitting a larger number main jet enriches the

air/fuel mixture.

* Included alternated parts

JET NEEDLE (J.N.)

The jet needle is linked to the throttle valve by means of the nee-

dle clip. Its lower part is tapered and it has seven grooves cut in

the upper part where the needle clip fits.

O.D. of Needle

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