Mazda 1984 RX7 Spezifikationen PDF herunterladen (Seite 24)

CARBURETOR - NIKKI 4-BBLArticle Text (p. 4)

1984 Mazda RX7For iluvmyrx7.com

Fig. 5: Checking Automatic Choke Release

CHECKING CARBURETOR HEATER

1) Disconnect electrical connector from No. 1 water

temperature switch and connect jumper wire to both terminals of

connector. Connect tachometer to engine.

2) Disconnect carburetor heater electrical connector and

connect voltmeter to connector. Start engine and set engine speed at

2000 RPM with choke knob.

3) With choke knob pulled out, current should flow to

carburetor heater lead. Current should not flow to heater lead with

choke knob pushed in.

4) Connect ohmmeter between carburetor heater lead and

carburetor body. If ohmmeter shows no movement, carburetor heater is

defective and must be replaced.

CHECKING CHOKE MAGNET

Disconnect connector from choke switch. Using an ohmmeter,

connect leads to terminals 6 and 8 of connector. Continuity should

exist with choke knob in any position. With knob pulled out .4-.8"

(8-12 mm), continuity should exist between terminals 3 and 7. See

Fig. 6.

Fig. 6: Checking Choke Switch and Magnet

Continuity should be present at terminals 6 and 8 with choke knob in

any position.

CHECKING CHOKE RELAY

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Mazda 1984 RX7 Spezifikationen Seite 24