Haynes Yamaha Xv V Twins Manual

2B-6 
Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

Transmission

Driveaxle and mainshaft runout limit 0.08 mm (0.0031 inch)

Torque specifications

Alternator cover bolts 10 Nm (7.2 ft-lbs)

Alternator cover screws 7 Nm (5.1 ft-lbs)

Alternator rotor nut , See Chapter 8

Cam chain damper bolt 8 Nm (5.8 ft-lbs)

Cam chain damper bolt locknut 12 Nm ((8.7 ft-lbs)

Cam chain tensioner bolts 10 Nm (7.2 ft-lbs)

Cam sprocket bolt 55 Nm (40 ft-lbs)

Cam sprocket cover bolts 10 Nm (7.2...

Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

2B-7

Valve stem diameter

Intake 7.975 to 7.990 mm (0.311 to 0.314 inch)

Exhaust . 7.960 to 7.975 mm (0.3134 to 0.3140 inch)

Valve head edge thickness limit 1.3 +/- 0.2 mm (0.051 +/- 0.008 inch)

Valve guide inside diameter 8.000 to 8.012 mm (0.3150 to 0.3155 inch)

Valve seat width limit 1.3 +/- 0.1 mm (0.051 +/- 0.004 inch)

Valve face width 2.1 mm (0.083 inch)

Valve inner spring free length 45.3 mm (1.783 inch)

Valve inner...

2B-8 
Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

Torque specifications (continued)

Cam chain damper bolt 8 Nm (5.8 ft-lbs)

Cam chain damper bolt locknut 12 Nm ((8.7 ft-lbs)

Cam chain tensioner bolts 10 Nm (7.2 ft-lbs)

Cam sprocket bolt 55 Nm (40 ft-lbs)

Cam sprocket cover bolts 10 Nm (7.2 ft-lbs)

Camshaft bushing bolts 20 Nm (14 ft-lbs)

Clutch push screw locknut 12 Nm (8.7 ft-lbs)

Clutch boss nut 70 Nm (50 ft-lbs) (4)

Clutch cover bolts.... 10 Nm (7.2 ft-lbs)

Clutch...

Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

2B-9

Valve face width 2.1 mm (0.083 inch)

Valve inner spring free length 43.39 mm (1.708 inch)

Valve inner spring installed length 38.0 mm (1.496 inch)

Valve inner spring bend limit 1.9 mm (0.0748 inch)

Valve outer spring free length . 45.33 mm (1.785 inch)

Valve outer spring installed length 40.0 mm (1.575 inch)

Valve outer spring bend limit 1.9 mm (0.0748 inch)

Cylinders

Bore diameter

Standard . 95.000 to 95.005 mm (3.7402...

2B-10 
Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

Torque specifications (continued)

Cam chain damper bolt 8 Nm (5.8 ft-lbs)

Cam chain clamper bolt locknut 12 Nm (8.7 ft-lbs)

Cam chain tensioner bolts 10 Nm (7.2 ft-lbs)

Cam sprocket bolt 55 Nm (40 ft-lbs)

Cam sprocket cover bolts 10 Nm (7.2 ft-lbs)

Camshaft retainer bolts 20 Nm (14 ft-lbs)

Clutch push screw locknut 12 Nm (8.7 ft-lbs)

Clutch boss nut 70 Nm (50 ft-lbs) (4)

Clutch cover bolts 10 Nm (7.2 ft-lbs)

Clutch...

Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models) 2B-11

5.9 Squeeze the clip, slide it down the hose and disconnect the

hose from the fitting

4 Major engine repair - general note

1 It is not always easy to determine when or if an engine should be

completely overhauled, as a number of factors must be considered.

2 High mileage is not necessarily an indication that an overhaul is

needed, while low mileage, on the other hand, does not preclude the

need for an overhaul. Frequency...

2B-12

Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

5.20a Unbolt the front cylinder mounting

bracket from the frame 
5.20b Remove the rear cylinder bracket-

to-frame bolts (arrow); theres one on each

side of the bike 
5.20c Remove the mounting stud at the

rear on 1981 through 1983 models

5.23 Look through the viewing port to

align the driveshaft with the middle

driven gear 
6.2a A selection of brushes is required for

cleaning holes and passages in the

engine components...

Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

2B-13

7.1b Camshaft, cam chains and tensioners

1

2

3

4

5

6

7

8

9

10

11

12

13

14 
Front cylinder camshaft

Camshaft bearing

Cam chain tensioner

Gasket

Bolt

Cam chain

Intermediate gear

Camshaft sprocket

Pin

Bolt

Washer

Gear spindle

retaining plate

Bolt 
15

16

17

18

19

20

21

22

23

24

25

26

27

28 
Chain guide

Tensioner side chain guide

Pivot shaft

Nut

Washer

Drive pinion

Pin

Spring

Rear...

2B-14 
Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

7.2a If the engine has Type B tensioners,

unscrew the tensioner from the body and

take it out 
7.2b Remove the Allen bolts and take the

tensioner body out of the cylinder 
7.3 Cam chain tensioner keeper

dimensions

7.5 Turn the screwdriver clockwise while pushing the tensioner

piston into the body 
8.3 engine mounting brackets

1 Front cylinder mounting

bracket

2 Rear cylinder mounting

bracket

3 Flange nuts (short)

4...

Chapter 2 Part B Engine, clutch and transmission (XV700-1100 models)

2B-15

8.4a Cylinder heads (1981 through 1983 models) - exploded view

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 
Front cylinder head

Rear cylinder head

Valve guide and snap-ring

Damping block

Locating dowel

Head gasket

Front cylinder stud

Rear cylinder stud

Stud

Nut

Copper washer

Cam chain tunnel O-ring

Nut

Domed nut

Washer

Bolt

Exhaust mounting stud 
18

19

20

21

22

23

24

25

26

27

28

29

30...