Yamaha XV1700P, XV1700PC. Service Manual - part 24

5 - 102

ENG

ENGINE OIL PUMP

EAS00356

ENGINE OIL PUMP

Order

Job/Part

Q’ty

Remarks

Removing the engine oil pump 

Remove the parts in the order listed. 

Crankcase

Separate.
Refer to “CRANKCASE”

1

Oil strainer

1

2

Engine oil pump assembly

1

For installation, reverse the removal 
procedure.

5 - 103

ENG

ENGINE OIL PUMP

Order

Job/Part

Q’ty

Remarks

Disassembling the engine oil pump 

Remove the parts in the order listed. 

1

Spring retainer

1

2

Spring

1

3

Relief valve

1

4

Oil pump housing cover 1

1

5

Pin

2

6

Spring

1

7

Collar

1

8

Ball

1

9

Oil pump outer rotor 1

1

0

Oil pump inner rotor 1

1

A

Pin

1

5 - 104

ENG

ENGINE OIL PUMP

Order

Job/Part

Q’ty

Remarks

B

Oil pump housing cover 2

1

C

Pin

2

D

Oil pump shaft

1

E

Pin

1

F

Oil pump inner rotor 2

1

G

Oil pump outer rotor 2

1

H

Oil seal

2

I

Oil pump housing

1

For assembly, reverse the disassembly 
procedure.

5 - 105

ENG

ENGINE OIL PUMP

EAS00363

CHECKING THE OIL PUMP

1. Check: 

• oil pump housing 

1

 

• oil pump housing covers 

2

 

Cracks/damage/wear 

→

 Replace the defec-

tive part(s).

2. Measure: 

• inner-rotor-to-outer-rotor-tip clearance 

a

 

• outer-rotor-to-oil-pump-housing clearance

b

 

Out of specification 

→

 Replace the oil

pump.

1

Inner rotor 

2

Outer rotor 

3

Oil pump housing

Inner-rotor-to-outer-rotor-tip 
clearance 

0 ~ 0.12 mm (0 ~ 0.0047 in) 

Outer-rotor-to-oil-pump-housing 
clearance (feed pump)

0.03 ~ 0.08 mm 
(0.0012 ~ 0.0031 in)

Outer-rotor-to-oil-pump-housing 
clearance (scavenging pump)

0.06 ~ 0.11 mm 
(0.0024 ~ 0.0043 in)

3. Check: 

• oil pump operation 

Rough movement 

→

 Repeat steps (1) and

(2) or replace the defective part(s).

EAS00365

CHECKING THE RELIEF VALVE

1. Check: 

• relief valve body 

1

 

• relief valve 

2

 

• spring 

3

 

Damage/wear 

→

 Replace the defective

part(s).

5 - 106

ENG

ENGINE OIL PUMP

2. Check:

• ball 

1

• collar 

2

• spring 

3

• oil seal 

4

Damage/wear 

→

 Replace the defective

part(s).

EAS00368

CHECKING THE OIL STRAINER

1. Check: 

• oil strainer 

1

 

Damage 

→

 Replace. 

Contaminants 

→

 Clean with solvent.

EAS00375

ASSEMBLING THE OIL PUMP

1. Lubricate: 

• inner rotor 
• outer rotor 
• oil pump shaft 

(with the recommended lubricant)

Recommended lubricant 

Engine oil

5 - 107

ENG

ENGINE OIL PUMP

2. Install: 

• oil pump housing 

1

 

• oil seals 

2

 

• oil pump outer rotor 2 

3

 

• oil pump inner rotor 2 

4

 

• pin 

5

 

• oil pump shaft 

6

 

• pins 

7

 

• oil pump housing cover 2 

8

• pin 

9

• oil pump inner rotor 1 

0

 

• oil pump outer rotor 1 

A

 

• ball 

B

• collar 

C

• spring 

D

• pins 

E

• oil pump housing cover 1 

F

• relief valve 

G

• spring 

H

• spring retainer 

I

NOTE:

_ 

When installing the inner rotor, align the pin in
the oil pump shaft with the groove in the inner
rotor. 

T

 

R

.

.

2 Nm (0.2 m  •  kg, 1.4 ft  •  lb)

T

 

R

.

.

2 Nm (0.2 m  •  kg, 1.4 ft  •  lb)

T

 

R

.

.

11 Nm (1.1 m  •  kg, 8.0 ft  •  lb)

3. Check: 

• oil pump operation 

Refer to “CHECKING THE OIL PUMP”.

EAS00376

INSTALLING THE OIL PUMP

1. Install: 

• oil pump 

1

CAUTION:

_ 

After tightening the bolts, make sure the oil
pump turns smoothly. 

T

 

R

.

.

10 Nm (1.0 m  •  kg, 7.2 ft  •  lb)

5 - 108

ENG

ENGINE OIL PUMP

EAS00378

INSTALLING THE OIL STRAINER

1. Install: 

• oil strainer 

1

 

NOTE:

_ 

The arrow mark on the oil strainer cover must
point towards the rear of the engine. 

T

 

R

.

.

10 Nm (1.0 m  •  kg, 7.2 ft  •  lb)

5 - 109

ENG

CRANKSHAFT AND CONNECTING RODS

CRANKSHAFT AND CONNECTING RODS

Order

Job/Part

Q’ty

Remarks

Removing the crankshaft and 
connecting rods

Remove the parts in the order listed. 

Crankcase

Separate.
Refer to “CRANKCASE”.

1

Crankshaft

1

2

Generator shaft

1

3

Connecting rod cap

2

4

Big end lower bearing

2

5

Connecting rod

2

6

Big end upper bearing

2

For installation, reverse the removal 
procedure.

5 - 110

ENG

CRANKSHAFT AND CONNECTING RODS

EAS00385

REMOVING THE CRANKSHAFT

1. Remove: 

• crankshaft journal bearing 

1

NOTE:

_ 

• Remove the crankshaft journal bearing with

the bearing remover and installer 

2

 and

bearing driver 

3

. 

Bearing remover and installer

YM-28898 

Bearing driver

YM-04058 

EAS00391

REMOVING THE CONNECTING RODS

The following procedure applies to all of the
connecting rods.
1. Remove: 

• connecting rod caps 

1

• connecting rod 
• big end bearings

NOTE:

_ 

Identify the position of each big end bearing so
that it can be reinstalled in its original place. 

EAS00398

CHECKING THE CRANKSHAFT AND 
CONNECTING RODS

1. Measure: 

• crankshaft runout 

Out of specification 

→

 Replace the crank-

shaft.

Crankshaft runout 

Less than 0.04 mm (0.0016 in)

5 - 111

ENG

CRANKSHAFT AND CONNECTING RODS

2. Check: 

• crankshaft journal surfaces 
• crankshaft pin surfaces 
• bearing surfaces 

Scratches/wear 

→

 Replace the crankshaft.

• generator shaft drive gear 

1

Damage/wear 

→

 Replace the crankshaft.

3. Measure: 

• crankshaft-pin-to-big-end-bearing clear-

ance 
Out of specification 

→

 Replace the big end

bearings.

The following procedure applies to all of the
connecting rods.

CAUTION:

_ 

Do not interchange the big end bearings
and connecting rods. To obtain the correct
crankshaft-pin-to-big-end-bearing clear-
ance and prevent engine damage, the big
end bearings must be installed in their orig-
inal positions. 

▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼▼▼

a. Clean the big end bearings, crankshaft pins,

and the inside of the connecting rod halves. 

b. Install the big end upper bearing into the

connecting rod and the big end lower bear-
ing into the connecting rod cap.

NOTE:

_ 

Align the projections 

a

 on the big end bear-

ings with the notches 

b

 in the connecting rod

and connecting rod cap. 

c. Put a piece of Plastigauge

®

 

1

 on the

crankshaft pin. 

Crankshaft-pin-to-big-end-bear-
ing clearance 

0.037 ~ 0.074 mm 
(0.0015 ~ 0.0029 in)

5 - 112

ENG

CRANKSHAFT AND CONNECTING RODS

d. Assemble the connecting rod halves.

NOTE:

_ 

• Do not move the connecting rod or crank-

shaft until the clearance measurement has
been completed. 

• Lubricate the bolts threads and nut seats

with molybdenum disulfide grease. 

• Make sure the projection 

c

 on the connect-

ing rod faces towards the left side of the
crankshaft. 

• Make sure the characters 

d

 on both the con-

necting rod and connecting rod cap are
aligned. 

e. Tighten the connecting rod bolts.

WARNING

• Replace the connecting rod bolts with

new ones.

• Clean the connecting rod bolts.

NOTE:

The tightening procedure of the connecting rod
bolts is angle controlled, therefore tighten the
bolts using the following procedure.

f. Tighten the connecting rod bolts to the

specified torque.

g. Tighten the connecting rod bolts further to

reach the specified angle 90° ~ 120°.

WARNING

When the bolts are tightened more than the
specified angle, do not loosen the bolt and
then retighten it.
Replace the bolt with a new one and per-
form the procedure again.

T

 

R

.

.

Connecting rod bolt

1st

15 Nm (1.5 m • kg, 11 ft • lb)

T

 

R

.

.

Connecting rod bolts

Final

Specified angle 90° ~ 120°

5 - 113

ENG

CAUTION:

• Do not use a torque wrench to tighten the

bolt to the specified angle.

• Tighten the bolt until it is the specified

angle.

NOTE:

When using a hexagonal bolt note that the
angle from one corner to another is 60°.

h. Remove the connecting rod and big end

bearings. 
Refer to “REMOVING THE CONNECTING
RODS”.

i. Measure the compressed Plastigauge

®

width 

e

 on each crankshaft pin. 

If the crankshaft-pin-to-big-end-bearing
clearance is out of specification, select
replacement big end bearings. 

▲▲▲

▲

▲ ▲▲▲

▲

▲ ▲▲▲

▲

▲ ▲▲▲

▲

▲ ▲▲▲

▲

▲ ▲▲▲

▲

▲▲▲

CRANKSHAFT AND CONNECTING RODS

5 - 114

ENG

CRANKSHAFT AND CONNECTING RODS

4. Select: 

• big end bearings (P

1

 ~ P

2

)

NOTE:

_ 

• The numbers 

a

 stamped into the crankshaft

web and the numbers 

b

 on the connecting

rods are used to determine the replacement
big end bearing sizes. 

• “P

1

” ~ “P

2

” refer to the bearings shown in the

crankshaft illustration. 

For example, if the connecting rod “P

1

” and the

crankshaft web “P” numbers are “5” and “2”
respectively, then the bearing size for “P

1

” is:

“P

1

” (connecting rod) - “P” (crankshaft) =

5 - 2 = 3 (brown)

BIG END BEARING COLOR CODE

1

blue

2

black

3

brown

4

green

5

yellow

P

1

P

2

5 - 115

ENG

CRANKSHAFT AND CONNECTING RODS

5. Measure:

• crankshaft journal diameter 

a

Out of specification 

→

 Replace the crank-

shaft.

NOTE:

Measure the diameter of each crankshaft jour-
nal at two places.

Crankshaft journal diameter

49.968 ~ 49.980 mm 
(1.9672 ~ 1.9677 in)

6. Measure:

• crankshaft journal bearing inside diameter

a

Out of specification 

→

 Replace the crank-

case assembly.

NOTE:

Measure the inside diameter of each crank-
shaft journal bearing at two places.

Crankshaft journal bearing inside 
diameter

50.010 ~ 50.028 mm 
(1.9689 ~ 1.9696 in)

5 - 116

ENG

CRANKSHAFT AND CONNECTING RODS

7. Calculate: 

• crankshaft journal-to-crankshaft journal

bearing clearance
Out of specification 

→

 Replace the crank-

shaft and crankshaft journal bearings as a
set.

NOTE:

Calculate the clearance by subtracting the
crankshaft journal diameter from the crank-
shaft journal bearing inside diameter.

Crankshaft journal-to-crankshaft 
journal bearing clearance

0.030 ~ 0.060 mm 
(0.0012 ~ 0.0024 in)

EAS00403

INSTALLING THE CONNECTING RODS

1. Lubricate: 

• bolt threads 

(with the recommended lubricant)

Recommended lubricant 

Molybdenum disulfide grease

2. Lubricate: 

• crankshaft pins 
• big end bearings 
• connecting rod inner surface 

(with the recommended lubricant)

Recommended lubricant 

Engine oil

5 - 117

ENG

CRANKSHAFT AND CONNECTING RODS

3. Install: 

• big end bearings 
• connecting rods 
• connecting rod caps 

(onto the crankshaft pins)

NOTE:

_ 

• Align the projections 

a

 on the big end bear-

ings with the notches 

b

 in the connecting

rods and connecting rod caps. 

• Be sure to reinstall each big end bearing in

its original place. 

• Make sure the projection 

c

 on the connect-

ing rods face towards the left side of the
crankshaft. 

• Make sure the characters 

d

 on both the con-

necting rod and connecting rod cap are
aligned. 

4. Tighten: 

• connecting rod bolts 

1

 

WARNING

• Replace the connecting rod bolts with

new ones.

• Clean the connecting rod bolts.

NOTE:

The tightening procedure of the connecting rod
bolts is angle controlled, therefore tighten the
bolts using the following procedure.

▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼ ▼▼▼

▼

▼▼▼

a. Tighten the connecting rod bolts to the

specified torque.

b. Tighten the connecting rod bolts further to

reach the specified angle 90° ~ 120°.

T

 

R

.

.

Connecting rod bolts

1st

15 mm (1.5 m • kg, 11 ft • lb)

T

 

R

.

.

Connecting rod bolts

Final

Specified angle 90° ~ 120°