Technical Information · issue 42 of 2002

Throttle Cable, Contact Plate

Model FS 120, 200, 250, 300, 350, FR 350 Clearing Saws/Brushcutters – Series 4134

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Technical Information

Important notes for                                                                                        42.2002
Model FS 120, 200, 250, 300, 350, FR 350 Clearing Saws/Brushcutters – Series 4134
Model BT 120 C Earth Augers – Series 4313

Throttle Cable, Contact Plate

On machines with a throttle cable but without a short               Installing Contact Plate and Gasket
circuit wire and ground wire, the electrical function of            A contact plate (3) together with an additional

the stop switch is performed by the throttle cable                  gasket (4) have been installed for some time to
sheath and the throttle cable itself.                               connect the throttle cable (1) electrically to engine
                                                                    ground and ignition system ground via the

          3     4 2                                                 carburetor (2).
                                                                    When the hex nuts (5) are tightened the contact
                                                                    plate’s claw (arrow) is pressed into the collar stud
                                                                    (6) and makes the electrical contact to the
                                                                    carburetor.
                                                     5
                                                                    Note
           6    1
                                                    -n250TI021 KN

                                                                                               40 mm
To provide consistant electrical continuity for the

STOP function, the machine is equipped with the                                               (1 18/32")
contact plate (3) and gasket (4).
If the contact plate is missing: Contact plate

4134 431 7000 and gasket 4128 129 0900 have to                                                  42 mm
                                                                                                                            250TI024 KN
be retrofitted.
                                                                                              (1 21/32")

                                                                    The existing collar studs must be replaced by the
                                                                    longer collar studs 4134 122 6601 when the contact

                                                                    plate and additional gasket are retrofitted.

Last Technical Information on models FS 120, 200, 250, 300, 350, FR 350, BT 120 C: 22.2001

© 2002 Andreas Stihl AG & Co.                                       Technical Documentation
  Waiblingen                                                        D1/MTK-sc                                        7691

TI_42_2002_02_01_01.fm                                                                                     english / USA

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