Honda AFRICA TWIN XRV750 (1987-2002) [241/291] 20 electrical system
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Honda AFRICA TWIN XRV750 (1987-2002) [241/291] 20 electrical system

Honda AFRICA TWIN XRV750 (1987-2002) [241/291] 20 electrical system

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9 20 Electrical system 16 45b Cover screws arrowed Undo the cover screws on the back of the housing noting any wiring clamps secured by the screws and lift off the front cover see illustration Undo the two screws securing the speedometer and remove It from the base noting how it fits and taking care not to snag the wiring connector as you draw it through the hole see illustration 46 Installation is the reverse of removal Tachometer check 16 45c Speedometer screws arrowed 49 On T models onward 1996 on Honda specify their own Imrie diagnostic tester model 625 or the peak voltage adapter Pt No 07HGJ 0020100 with an aftermarket digital multimeter having an impedance of 10 Mohm DCV minimum for a complete test If this equipment is available connect the positive lead of the voltmeter and peak voltage adapter arrangement to the yellow green wire terminal on the tachometer and the negative lead to a good earth ground Turn the engine over on the starter motor and note the voltage reading obtained If the reading is 10 5 V or above the tachometer is faulty If the reading is below 10 5 V but above 0 V the ignition control unit is probably faulty If there is no voltage detach the wires and check for continuity to the ignition control unit in the yellow green wire If there is no continuity check the wiring and connectors for faults referring to the relevant Wiring Diagram at the end of the Chapter If there is continuity the Ignition control unit is probably faulty If there is the correct voltage check for continuity to earth in the green wire again using the Wiring Diagrams Otherwise take the tachometer to a Honda dealer for assessment 47 Special instruments are required to properly check the operation of the meter itself If there is a fault first check the fuses see Chapter 5 If they are good remove the fairing see Chapter 8 48 On L to S 1987 to 1995 models with three wires to the tachometer disconnect the cluster wiring connectors then check for battery voltage between the black wire terminal on the loom side of the connector and a good earth ground with the ignition switch ON If there is no voltage check the wiring and connectors for faults referring to the relevant Wiring Diagram at the end of the Chapter If there is voltage check for continuity to earth in the green wire and for continuity to the Ignition control unit in the black yellow wire again using the Wiring Diagrams Otherwise take the tachometer to a Honda dealer for assessment 50 Remove the instrument cluster see Section 15 16 52 Tachometer wiring screws A note centre wire not fitted on all models tachometer mounting screws B 16 57 Temperature gauge screws arrowed Tachometer replacement 51 On L and M 1990 and 1991 models disconnect the tachometer wiring at the bullet connectors see illustration 16 44 Undo the two nuts securing the tachometer noting the wiring clamp and draw it out of its bracket noting how it fits 52 On N models onward 1992 on undo the cover screws on the back of the housing noting any wiring clamps secured by the screws and lift off the front cover see illustration 16 45b Undo the screws securing the tachometer wiring noting which wire fits where though the colour codes of the wires should be marked next to the terminals and detach the wires see illustration Undo the screws securing the tachometer and remove it from the base noting how it fits 53 Installation is the reverse of removal Coolant temperature gauge check 54 See Chapter 3 Coolant temperature gauge replacement 55 Remove the instrument cluster ses Section 15 56 On L and M 1990 and 1991 models undo the screws securing the temperature gauge wiring noting which wire fits where though the colour codes of the wires should be marked next to the terminals and detach the wires see illustration 16 44 Undo the two nuts securing the gauge and draw it out of its bracket noting how it fits 57 On N models onward 1992 on undo the cover screws on the back of the housing noting any wiring clamps secured by the screws and lift off the front cover see illustration 16 45b Undo the screws securing the temperature gauge and its wiring noting which wire fits where though the colour codes of the wires should be marked next to the terminals and detach the wires see illustration Remove the gauge from the base noting how it fits 58 Installation is the reverse of removal

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