Honda AFRICA TWIN XRV750 (1987-2002) [254/291] Electrical system 9 33

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Electrical system 9 33 rectifier and disconnecl it at the connectors or disconnect the connector from the regulator rectifier according to model Check the connectors for loose damaged or corroded terminals 2 Set the multimeter to the 0 20 de volts setting Connect the meter positive probe to the red white wire terminal use either terminal where there are two and check both on the loom side of the connector and the negative probe to a suitable ground earth and check for voltage Full battery voltage should be present at all times i e with the ignition OFF On XL600V H to K 1987 to1989 models and XRV750 L and M 1990 and 1991 models perform a similar check for Battery voltage at the black wire terminal this time with the ignition ON 3 Switch the multimeter to the resistance ohms scale Check for continuity between the green wire terminal on the loom side of the connector and ground earth There should be continuity 4 On XRV750 models set the multimeter to Ihe K ohms ohmmeter scale and measure the resistance between each of the terminals as indicated by the table for your model see illustrations The readings should be within the range shown Honda provide no such figures for XL models but you could use the XRV figures as a guide for checking the internal circuitry Usually a fault is identifiable by the absence or presence of infinite or zero resistance when there should In fact be a measurable amount 5 If the above checks do not provide the expected results check the wiring and connectors between the battery regulator rectifier and alternator for shorts breaks and loose or corroded terminals see the wiring diagrams at the end of this book 6 If the wiring checks out the regulator rectifier unit is probably faulty Take II to a Honda dealer for confirmation of its condition before replacing it with a new one Alternatively obtain a known good one to use as a substitute then check whether the fault has been corrected 33 1c Regulator rectifier arrowed XRV750 P models onward 1993 on 33 1b Regulator rectifier arrowed XL650V Probe Black Red white Yellow Yellow Yellow Green 2010 100 kX2 15 to BO kQ 15 Io 80 kil 15 to 80 Ki J 10 to 50 ku oo OO oo oo oo oa pa oo Probe Black co Red white co Yellow co 05toWk Yellow oo 0 5IO 10 kH oo Yellow co O otolOkli co oo Green 1 to 20 kn 0 5 to 10K1J 0 5ioi0kiJ X 1 Io 20 kl oo 0 5 IO 10KS2 33 4a Regulator rectifier test details XRV750 L to N 1990 to 1992 models Infinity kQ K ohms Replacement 7 On XL600V models and XRV750 L to N 11990 to 1992 models remove the right hand side panel see illustration 33 1a On XL650V and XRV750 P models onwards 1993 on remove the left hand side panel see illustrations 33 1b or c Either trace the wiring from the regulator rectifier and disconnect it at the connectors or disconnect the connector from the regulator rectifier according to model Free the wiring from any clips or lies and feed it back to the regulator rectifier 8 Unscrew the two nuts or bolts securing the regulator rectifier noting any earth wires and on XL600 models the rear brake master cylinder reservoir secured by them and remove the regulator rectifier 9 Installation Is the reverse of removal 33 4a Regulator rectifier test details XRV750 P models onward 1993 on Infinity Ohms KQ K ohms