Haynes Yamaha Xv V Twins Manual

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Chapter 1 Tune-up and routine maintenance

12.3 Remove the filler plug to check final

drive oil level 
12.4a The oil should be even with the top

of the filler hole

12.4b Add oil through the filler hole

12.7a Remove the drain plug ,

12.7b ... and let the oil drain into a pan, then clean the plug

threads and reinstall it

3 Remove the filler plug from the final drive housing (see

illustration).

4 Look inside the hole and check the oil level. It should be even with

the top of the hole (see...

Chapter 1 Tune-up and routine maintenance

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13.4a The oil drain plug (arrow) is located

on the left side of the engine (XV535

shown; others similar) 
13.4b Loosen the drain plug with

a socket... 
13.4c ... and let the oil drain into a pan

13.5a On XV535 models, remove the Allen

bolts (arrows) ... 
13.5b ... and remove the cover

13.5c On XV700 through 1100 models,

remove the Allen bolts (arrows)...

13.6a ... and remove the cover together

with its two O-rings 
13.6b Pull the filter element...

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Chapter 1 Tune-up and routine maintenance

13.13 Make sure the washer is in position

on the inner end of the filter element 
14.2 Remove the screw (1), then lift the

housing cover

14.5a Remove the case cover

bolts (arrows)...

14.5b ... be careful not to lose the spacer tubes and washers

7 If youre working on an XV535 model, remove the O-ring from its

groove in the cover (see illustration).

8 If youre working on an XV700 through 1100 model, remove one

O-ring from the groove in the cover...

Chapter 1 Tune-up and routine maintenance

1-17

14.6 Separate the housing halves and

take the filter element out 
14.7a Check the seal between the filter

housing and the frame ... 
14.7b ... and the seals inside the filter

housing; replace them if theyre

deteriorated or brittle

14.9 Loosen the clamp bolt and remove

the Allen bolts, then detach the air filter

case from the motorcycle 
14.10a Remove the cover from the inside

of the case 
14.10b Remove the filter element

retaining screw, detach...

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Chapter 1 Tune-up and routine maintenance

16.2 On XV535 models, remove the Allen

bolts and lift off the cylinder head

side covers 
16.3b ... check the rubber seals for

brittleness and the plastic for cracks

16.3c The spark plugs are inside wells in

the cylinder heads, so youll need a

socket with a rubber insert to grip

the plug 
16.7a Spark plug manufacturers

recommend using a wire type gauge when

checking the gap - if the wire doesnt slide

between the electrodes with a slight drag,...

For a COLOR version of this spark plug diagnosis page, please see the inside rear cover of this manual

CARBON DEPOSITS

Symptoms: Dry sooty deposits

indicate a rich mixture or weak

ignition. Causes misfiring, hard

starting and hesitation.

Recommendation: Check for

a clogged air cleaner, high float

level, sticky choke and worn ig-

nition points. Use a spark plug

with a longer core nose for

greater anti-fouling protection.

OIL DEPOSITS

Symptoms: Oily coating

caused by poor oil control. Oil...

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Chapter 1 Tune-up and routine maintenance

17.2a Lubricate the brake pedal pivot... 
17.2b ... the footpeg and shift linkage

pivots (arrows) - XV1100 shown ... 
17.2c ... and the brake and clutch lever

pivots (brake lever shown; clutch

lever similar)

17.3a Lubricating a cable with a pressure lube adapter (make

sure the tool seats around the inner cable)

17.3b Oiling a control cable with a funnel
8 Since the cylinder head is made of aluminum, which is soft and

easily damaged, thread the...

Chapter 1 Tune-up and routine maintenance

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18.7a Remove the cover

bolts (arrows)... 
18.7b ... and lift the cover off 
18.8 Unscrew the timing plug (upper

arrow) and the crankcase cover plate

(lower arrow)

18.9a The timing mark for the rear cylinder is the line next to

the T on the alternator rotor; align it with the notch inside

the hole (arrow)

removed and lubricated whenever the throttle cables are lubricated.

Refer to the handlebar switch removal section of Chapter 8.

4 The...

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Chapter 1 Tune-up and routine maintenance

18.14 The single line on the edge of the

alternator rotor is the top dead center

mark for the front cylinder 
18.22 Lift off the rocker cover

18.23 Remove the crankcase outer cover

18.24a The timing mark for the rear cylinder is the line next to the

T on the alternator rotor; align it with the pointer inside the hole 
18.24b XV700 through 1100 timing marks

1 Rear cylinder top dead center mark

2 Front cylinder top dead center mark

3 Rear cylinder...

Chapter 1 Tune-up and routine maintenance

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19.3 Turn the throttle stop screw to set

idle speed (1981 through 1987 XV700

through 1100 shown; XV535 and 1988-on

XV750 and 1100 similar) 
20.7 Remove the rubber caps and connect

the vacuum gauges or manometer to the

fittings (A); turn the synchronizing screw

(B) to obtain even vacuum readings (XV535

shown; others similar) 
20.9 Disconnect the smaller ho^e from

the front carburetors intake joint and

connect one of the vacuum gauges or

manometer...