Manual Yamaha XV750 Virago (page 316 of 363) (English)

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Chapter 8 Part A Electrical system (XV535 models)

8A-13

23.2 Starting circuit cut-off relay test

1 Ohmmeter

2 Blue/white terminal

3 Blue/white terminal

4 Red/white terminal (red/

black on 1994 models)

5 Black/yellow terminal

6 12-volt battery

cables) directly from the battery positive terminal to the disconnected

end of the cable. Warning: Make the connection at the battery first and

at the cable last; sparks are likely to occur, and if they occur near the

battery they could cause it to explode.

a) If the starter motor cranks, the problem is somewhere in the

starting circuit, possibly in the starter relay. Go to Step 5.

b) If the starter doesn 't crank, remove and inspect it (see Sections 24

and 25).

5 If the starter cranks when the relay is bypassed, disconnect the

two-wire connector from the relay (see illustration 22.4). Connect a

jumper wire from the relay side of the red/white wire to the battery

positive terminal. Connect another jumper wire from the blue/white

wire to ground/earth (bare metal on the motorcycle frame).

a) If the relay clicks and the starter motor cranks, the relay is good.

Test the cut-off relay (see Section 23) and check the starter circuit

wiring for breaks or bad connections (see the Wiring diagrams at

the end of the book).

b) If the relay doesn't click, it's probably bad. Replace it.

Replacement

6 Disconnect the cable from the negative terminal of the battery.

7 Detach the battery positive cable, the starter cable and electrical

connector from the relay (see illustration 22.4).

8 Slide the relay off its mounting tabs.

9 Installation is the reverse of removal. Reconnect the negative

battery cable after all the other electrical connections are made.

23 Starting circuit cut-off relay - check and replacement

Check

Refer to illustration 23.2

1 Remove the right front side cover and locate the relay assembly

(see illustration 11.3).

2 Connect an ohmmeter between the terminals in the relay that

connect to the blue/white wires in the wiring harness (see illustration).

The ohmmeter should show infinite resistance. Note: The terminals in

the relay are very close together. Use thin probes to make the

ohmmeter connection.

3 Set the ohmmeter aside and connect a 12-volt battery between

the terminals for the black/yellow and red/white wires (black/yellow

and red/black on 1994 models) in the relay (see illustration 23.2). The

24.2 Remove the nut and disconnect the cable

motorcycle's battery will work if it's charged. Note: The terminals

inside the relay are very close together. Use two wires with small

insulated alligator clips at each end to connect the relay terminals to

the battery. Make the last connection at the battery negative terminal.

4 Reconnect the ohmmeter probes to the terminals for the blue-

white wires. The ohmmeter should now show continuity (little or no

resistance).

5 Disconnect and reconnect the battery (detach and reattach the

alligator clip at the battery negative terminal). The ohmmeter should

show continuity whenever the battery is connected and no continuity

whenever it's disconnected. If not, replace the relay assembly.

Replacement

6 Remove the right front side cover if you haven't already done so

(see Chapter 7).

7 Disconnect the relay assembly's wiring connector (see

illustration 11.3). Slip the relay assembly off its mounting tabs.

8 Installation is the reverse of the removal steps.

24 Starter motor - removal and installation

Refer to illustration 24.2

Removal

1 Disconnect the cable from the negative terminal of the battery.

2 Pull back the rubber cover, remove the nut retaining the starter

cable to the starter and disconnect the cable (see illustration).

3 Remove the starter mounting bolts.

4 Lift the end of the starter up a little bit and slide the starter out of

the engine case.

5 Check the condition of the. O-ring on the end of the starter and

replace it if necessary. Also check the starter pinion gear and the

driven gear inside the engine for chipped or worn teeth.

Installation

6 Apply a little engine oil to the O-ring and install the starter by

reversing the removal probedure. Tighten the starter mounting bolts to

the torque listed in this Chapter's Specifications.

25 Starter motor - disassembly, inspection and

reassembly

1 Remove the starter motor (see Section 24).

Hi am Gavin from Napier, New Zealand- Does anyone know the correct clearance between the clutch basket bush and the gearbox input shaft on my 1990 Yamaha Virago xv 750 please? Submitted on 12-12-2021 at 00:03
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Yamaha XV750 Virago Manual

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