Item

Model

XJ750XN

Model Code Number Federal V.I.N. Number Engine Starting Number

1FL

JYA1FL00 * FA000101

1FL-000101

Dimensions: Overall Length Overall Width Overall Height Seat Height Wheelbase Minimum Ground Clearance

2,235 mm (88.0 in) 775 mm (30.5 in)

1,160 mm (45.7 in) 760 mm (29.9 in)

1,520 mm (59.8 in) 145 mm ( 5.7 in)

Basic Weight: With Oil and Full Fuel Tank

232 kg (511 lb)

Minimum Turning Radius:

2,800 mm (110.2 in)

Engine: 

Engine Type 

Cylinder Arrangement 

Displacement 

Bore x Stroke 

Compression Ratio 

Compression Pressure 

Starting System

Liquid cooled 4-stroke, gasoline, DOHC

4-cylinder parallel

749 cm³ (45.69 cu.in)

68.0 x 51.6 mm J2.677 x 2.032 in)

11.2:1

1,098 kPa (11.2 kg/cm², 159 psi) at 300 r/min

Electric starter

Lubrication System:

Pressure lubricated, wet sump

Oil Type of Grade: 
Engine Oil

Final Gear Oil

Yamalube 4-cycle oil or SAE 20W40 type SE motor oil (If temperature does not go below 5°C (40°F).)

SAE 10W30 type SE motor oil (If temperature does not go above 15°C (60°F).)

SAE 80API "GL-4" Hypoid gear oil

Oil Capacity: 

Engine Oil:

Periodic Oil Change 

With Oil Filter Replacement 

Total Amount Final 

Gear Case Oil Amount

2.5 L(2.2 lmpqt,2.6USqt) 

2.8 L (2.5 Imp qt, 3.0 US qt) 

3.5 L(3.1 Impqt, 3.7USqt) 

0.2 L(0.18 Impqt, 0.21 US qt)

Radiator Capacity: (Includingall routes)

2.4 L (2.1 Impqt, 2.5 US qt)

Air Filter:

Dry type element

Fuel: Type

Tank Capacity Reserve Amount

Regular gasoline

13 L(2.9 Imp gal, 3.4 US gal)

3 L (0.7 Imp gal, 0.8 US gal)

Carburetor: Type Manufacturer

BS33 x 4, Constant velocity MIKUNI

XJ750XN

Spark Plug:

Type/Manufacturer 

Gap

D8ES /NGK or X24ES-U /NIPPONDENSO 

0.6 - 0.7 mm (0.024 - 0.028 in)

Clutch Type:

Wet, multiple-disc

Transmission: 

Primary Reduction System 

Primary Reduction Ratio 

Secondary Reduction System 

Secondary Reduction Ratio 

Transmission Type 

Operation

Gear Ratio 

1st 

2nd 

3rd 

4th 

5th

Spur gear

97/58(1.672)

Shaft drive

49/36 x 19/18x32/11 (4.179)

Constant-mesh, 5-speed

Left foot operation

35/16(2.187)

30/20(1.500)

30/26(1.153)

28/30 (0.933)

26/32(0.812)

Chassis: 

Frame Type 

Caster Angle 

Trail

Tubular steel, double cradle

31.5°

120 mm (4.72 in)

Tire: 

Type 

Size(F) 

Size(R)

Tubeless 

100/90-19 57 H 

130/90-16 67H

Tire Pressure (Cold Tire): 

Up to 90 kg (198 lb) load*

90 kg (1981b) load- 238 kg (525 lb) load* 

High Speed Riding

*Load is the total weight of cargo, rider, passenger, and accessories.

FRONT

REAR

177 kPa (1.8 kg/cm², 26 psi)

196 kPa (2,0 kg/cm², 28 psi)

196 kPa (2.0 kg/cm², 28psi)

275 kPa (2.8 kg/cm², 40 psi)

206 kPa (2.1 kg/cm², 30psi)

226 kPa (2.3 kg/cm², 32psi)

Brake: Front Brake Type Operation Rear Brake Type Operation

Dual disc brake Right hand operation Drum brake Right foot operation

Suspension: Front Suspension Rear Suspension

Telescopic fork Swingarm

Shock Absorber: 

Front Shock Absorber 

Rear Shock Absorber

Coil-Air spring, oil damper 

Coil spring, oil damper

Wheel Travel: 

Front Wheel Travel 

Rear Wheel Travel

150 mm (5.9 in) 

99 mm (3.9 in)

Electrical: 

Ignition System 

Generator System 

Battery Type or Model 

Battery Capacity

T.C.I.

A.C. Generator

YB14L

12V 14AH

Indicator Light: 

Wattage x Quantity:

Meter Light 

"NEUTRAL" 

"HIGH BEAM" 

"TURN" 

"OIL LEVEL"

 "FUEL"

12V, 3Wx4 

12V, 3Wx 1 

12V,3Wx1 

12V,3Wx2 

12V,3Wx1 

12V, 3Wx1

Model

XJ750XN

Cylinder Head: Warp Limit

0.03 mm (0.0012 in)

*Lines indicate straightedge measurement.

Cylinder: 

Bore Size 

Taper Limit 

Out-of Round Limit

68.000 ~ 68.005 mm (2.6772 ~~ 2.6774 in) 

0.05 mm (0.002 in) 

0.05 mm (0.002 in)

Camshaft: 

Drive Method

Cam Cap Inside Diameter

Camshaft Outside Diameter Shaft to Cap Clearance

Chain drive (Center)

24.5^+0.021_-0 mm (0.9646^+0.008_-0 in)

24.5^-0.050_-63 mm (0.9646^-0.0020_-0.0025 in) 

0.050 - 0.084 mm (0.0020 - 0.0033 in)

Cam Dimensions:

Intake "A"

<Limit> 

"B"

<Limit> 

"C"

32.55-32.65 mm (1.2815- 1.2854 in)

32.45 mm (1.2776 in)

24.95 ~ 25.05 mm (0.9823 - 0.9862 in)

24.85 mm (0.9783 in)

7.5 - 7.7 mm (0.2953 ~ 0.3031 in)

Exhaust "A"

<Limit> 

"B"

<Limit> 

"C"

32.40 ~ 32.50 mm (1.2756 - 1.2795 in)

32.30 mm (1.2717 in)

24.95 - 25.05 mm (0.9823 - 0.9862 in)

24.85 mm (0.9783 in)

7.35 - 7.55 mm (0.2894 - 0.2972 in)

Model

XJ750XN

Camshaft Runout Limit

Cam Chain Type/Number of Links

Cam Chain Adjustment Method

0.03 mm (0.0012 in) 

Bush chain/112 

Automatic

 Valve Clearance (Cold) 

IN.

EX.

0.11 - 0.20 mm (0.004 - 0.008 in) 

0.21 - 0.30 mm (0.008 - 0.012 in)

Valve Dimensions

"A" Head Dia. 
IN.
EX. 

"B" Face Width 
IN.
EX. 

"C" Seat Width 
IN.
EX. 

"D" Margin Thickness 
IN.
EX.

21 ± 0.1 mm (0.827 ± 0.004 in) 
23 ± 0.1 mm (0.906 ± 0.004 in) 

1.98- 2.55 mm (0.080- 0.100 in) 
1.98- 2.55 mm (0.080- 0.100 in) 

1.0 ± 0.1 mm (0.040 ± 0.004 in) 
1.0 ± 0.1 mm (0.040 ± 0.004 in) 

0.7+0.1 mm (0.028 ± 0.004 in) 
0.7 ± 0.1 mm (0.028 ± 0.004 in)

Stem Outside Diameter 
IN
EX.

<Limit>
IN. 
EX.

5^-0.010_-25 mm (0.1969^-0.0004_-0.0010 in) 
5^-0.025_-40 mm (0.1969^-0.0010_-0.0016 in) 

4.945 mm (0.1947 in) 
4.930 mm (0.1941 in)

Guide Inside Diameter 
IN.
EX.

<Limit> 
IN. 
EX.

5^+0.012_-0 mm (0.1969^+0.0005_-0 in) 
5^+0.012_-0 mm (0.1969^+0.0005_-0 in) 

5.05 mm (0.199 in) 
5.05 mm (0.199 in)

Stem-to Guide Clearance 
IN.
EX.

<Limit> 
IN.
EX.

0.010-0.037 mm (0.0004 - 0.0015 in) 
0.025 - 0.052 mm (0.0010 - 0.0020 in)

0.08 mm (0.003 in) 
0.10 mm (0.004 in)

Stem-Runout Limit

0.01 mm (0.0004 in)

Valve Spring: 

Free Length 
IN.
EX. 

Installed Length (Valve Closes)
IN.
EX.

39.76 mm (1.565 in) 
39.96 mm (1.573 in) 

35.0 mm (1.378 in) 
35.0 mm (1.378 in)

Model

XJ750N

Tilt Limit 

Inner Spring IN. & EX. 

Outer Spring IN. & EX.

2.5° or 1.7 mm (0.067 in)

2.5° or 1.7 mm (0.067 in)

Direction of Winding 
IN.
EX.

Right 
Right

Piston:

 Piston Size "D"/
 Measuring Point "H"

68.00^-0.012_-0.075 mm (2.672^-0.0024_-0.0030 in) 

5 mm (0.20 in) (From bottom line of piston skirt)

Clearance Between Piston & Cylinder

<Limit>

Oversize: 
2nd
4th

0.06 - 0.08 mm (0.0024 - 0.0031 in) 

0.1 mm (0.004 in) 

68.50 mm (2.697 in) 
69.00 mm (2.717 in)

Piston Ring:

Sectional Sketch

Top Ring 

2nd Ring 

Oil Ring

Barrel
B = 1.0 mm (0.039 in)
T = 2.6mm (0.102 in)

Taper
B = 1.2 mm (0.042 in)
T = 2.7 mm (0.106 in)

Expander
B = 2.0 mm (0.079 in)
T- 2.5 mm (0.098 in)

End Gap (Installed): 

Top Ring
<Limit> 

2nd Ring 
<Limit> 

Oil Ring 
<Limit>

0.30 ~ 0.45 mm (0.012 ~ 0.018 in)
1.0 mm (0.040 in)

0.20 - 0.35 mm (0.008 - 0.014 in)
1.0 mm (0.040 in)

0.20 - 0.7 mm (0.008 - 0.028 in)
1.5 mm (0.060 in)

Side Clearance: 

Top Ring
<Limit> 

2nd Ring 
<Limit>

0.03 - 0.07 mm (0.0012 - 0.0028 in) 
0.15 mm (0.006 in) 

0.03 ~~ 0.07 mm (0.0012 - 0.0028 in)
 0.15 mm (0.006 in)

Model

XJ750XN

Connecting Rod: Oil Clearance

0.032 - 0.056 mm (0.0013 - 0.0022 in)

Crankshaft:

Crank Width "A" 

Runout Limit "B" 

Big End Side Clearance "C" 

Journal Clearance

341.4 ± 0.6 mm (13.441 ± 0.024 in) 

0.03 mm (0.0012 in) 

0.160 ~ 0.262 mm (0.0063 - 0.0103 in)

 0.020 ~ 0.044 mm (0.0008- 0.0017 in)

Bearing: 

Color Code (Corresponding Size)

1. Blue 1.5 ^+0.006_+0.002 mm (0.0591^+0.00024_+0.00007 in) 

2. Black 1.5 ^+0.002_-0.002 mm (0.0591^+0.00007_-0.00007 in) 

3.  Brown 1.5 ^-0.002_-0.006 mm (0.0591^-0.00007_-0.00024 in)

4. Green 1.5 ^-0.006_-0.010 mm (0.0591^-0.00024_-0.00039 in)

5.  Yellow 1.5 ^-0.010_-0.014 mm (0.0591^-0.00039_-0.00056 in)

Clutch: 

Friction Plate Thickness x Quantity
Wear Limit

Clutch Plate Thickness x Quantity Warp Limit

Clutch Spring Free Length x Quantity 
Clutch Spring Minimum Length

 Clutch Release Method

3.0 mm (0.12 in) x 8 
2.8 mm (0.11 in) 

2.0 mm (0.079 in) x 7 
0.05 mm (0.0020 in) 

50.5 mm (2.031 in) x6 
49.0 mm (1.93 in) 

Outer Pull

Transmission: 

Main Axle Deflection Limit 

Drive Axle Deflection Limit

0.08 mm (0.0031 in) 

0.08 mm (0.0031 in)

Shifter: 

Shifter Type 

Guide Bar Bending Limit

Guide bar

0.1 mm (0.004 in)

Carburetor:

 Type/Manufacturer/Quantity 

I.D. Mark

Main Jet (MJ.) 

Main Air Jet (M.AJ.) 

Jet Needle-clip Position (J.N.) 

Needle Jet (N.J.) 

Throttle Valve (Th.V) 

Pilot Jet (P.J.) 

Pilot Outlet Size (P.O.) 

Pilot Air Jet (P.A.J.)

Pilot Screw (P.S.) 

Valve Seat Size (V.S.) 

Starter Jet (G.S.) 

Bypath Size (B.P.)

Fuel Level (F.L)

Float Height (F.H.) 

Engine Idling Speed 

Vacuum Pressure at Idling Speed 

Vacuum Synchronous Difference

BS33/MIKUNI/4

1FL00

#105

#120

5FZ83

Y-2

#130

#37.5

00.8

#140

2-1/2 ± 1/2

02.3

*35

00.9

3.0 ± 1.0 mm (0.12 ± 0.04 in) 
below from the carburetor mixing chamber body edge.

17.5 ± 1.0 mm (0.69 ± 0.04 in)

1,050± 50r/min

24 ± 1.3 kPa (180± 5 mmHg, 7.1 ± 0.2 inHg)

Below 0.7 kPa (5 mmHg, 0.2 inHg)

XJ750XN

Lubrication System: 

Oil Filter Type 

Oil Pump Type 

Tip Clearance 

Side Clearance

Bypass Valve Setting 

Pressure Relief Valve Operating Pressure

Paper

Trochoid pump

0.03 ~ 0.09 mm (0.0012 - 0.0035 in)

0.03 ~ 0.08 mm (0.0012 ~ 0.0031 in)

98.0 ± 20kPa (1.0+ 0.2 kg/cm², 14.2 ± 2.8 psi)

490±49kPa(5.0± 0.5 kg/cm², 71 ± 7.1 psi)

Lubrication Chart

Cooling System: 

Radiator Core Size 
Width
Height 
Thickness 

Radiator Cap Opening Pressure

300 mm (11.8 in)
185 mm (7.28 in)
32 mm (1.26 in)

78 - 98 kPa (0.8 - 1.0 kg/cm², 11.4- 14.2 psi)

Coolant: 

Total Amount

 Reservoir Tank Capacity 

<From Low to FULL Level>

24.0L (2.11 lmp. qt, 2.54US qt) 

0.49 L (0.43 Imp qt, 0.52 US qt) 

0.14 L (0.12 Imp. qt, 0.15 US qt)

Water Pump: Type

Single Suction Centrifugal Pump

Thermostat: 

Opening Temperature 

Full Open Temperature/Lift

82°C(180°F)

95°C (203°F)/8mm (0.31 in)

Shaft Drive: Middle Gear Backlash: Final Gear Backlash:

0.1 ~ 0.2 mm (0.004 - 0.008 in) 0.1 ~ 0.2 mm (0.004 - 0.008 in)

XJ750XN

Headlight Type:

Semi-sealed beam (Quartz bulb)

Bulb Wattage x Quantity: 

Headlight 
Tail/Brake Light 
Flasher Light

12V, 60W/55W
12V,8W/27Wx2
12V,27Wx4

Indicator Light:

Wattage x Quantity: 
Meter Light
"NEUTRAL"
"HIGH BEAM" 
"TURN" 
"OIL LEVEL" 
"FUEL"

12V,3Wx4 
12V, 3Wx 1 
12V, 3Wx1 
12V, 3Wx2 
12V,3Wx1 
12V,3Wx1

Part to be tightened

Part name

Thread size

Q'ty

Tightening torque

Remarks

Nm

m kg

ftlb

Spark plug

Cylinder head

Cylinder head cover

Can cap

Can sprocket

Can case-Cylinder head

Oil check bolt

Cover (cylinder head)

Drain bolt (cylinder)

Cam chain tensioner end plug

Cam chain tensioner

Cam chain guide

Connecting rod

Carburetor cover

Carburetor joint

Air cleaner case cap

Air cleaner case

Exhaust pipe-Engine

Exhaust pipe-Chamber

Chamber

Chamber-Muffler

Muffler stay

Muffler

N/A

Nut 

Bolt

 Bolt 

Bolt 

Bolt 

Bolt 

Bolt 

Bolt 

Bolt 

Bolt 

Bolt 

Nut

Screw

 Bolt

Screw

 Bolt

 Nut 

Bolt 

Bolt 

Bolt

 Bolt

 Bolt

M12 P1.25

 M9 P1.25 

M6 P1.0 

M6 P1.0 

M7 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M8 P1.25 

M6 P1.0 

M6 P1.0 

M8 P0.75 

M5 P0.8 

M6 P1.0 

M5 P1.0 

M6 P1.0 

M6 P1.0 

M8 P1.25 

M8 P1.25 

M8 P1.25 

M8 P1.25

 M8 PI.25

4

 8 

8

40 

4

11 

1 

4 

2 

1 

2 

1 

8 

4 

8 

3 

2 

8 

4 

1 

2 

2 

2

17.5

37 

10 

10 

20 

10 

10 

10 

10

9

10 

10 

36

5 

12

5

7 

10 

20 

25 

25 

20 

20

1.75

3.7

1.0

1.0

2.0

1.0

1.0

1.0

1.0

0.9

1.0

1.0

3.6

0.5

1.2

0.5

0.7

1.0

2.0

2.5

2.5

2.0

2.0

12.5

27 

7.2 

7.2

14 

7.2 

7.2 

7.2 

7.2 

6.5 

7.2 

7.2

25 

3.6 

8.7 

3.6 

5.1 

7.2

14

18

18

14

14

Oil 

Oil

Part to be tightened

Part name

Thread size

Q'ty

Tightening torque

Remarks

Nm

m-kg

ft-lb

Oil filter

Drain bolt

Oil pan

Oil pump sprocket

Oil pump

Oil pump cover

Oil delivery pipe

Conduit

Thermostatic valve

Air bleed screw

Thermostatic valve cover

Radiator

Drain bolt (radiator pipe)

Drain bolt (radiator)

Water pump drive gear cover

Water pump drive gear

Water pump joint

Joint (cylinder)

Crankcase

Crankcase

Main gallery

A.C.G. cover

Brush

A.C. Generator

A C.G. bearing housing

Starter motor

Timing plate

Stationaly pointer

Pickup coil

Clutch cover

Clutch cable holder

Pressure plate

Clutch boss

Shift pedal

Shift cover

Drive axle bearing housing

Starter clutch outer

Stopper plate (starter idle gear shaft)

Drive chain guide (starter)

Middle gear: Bearing housing

Bearing stopper plate

Drive shaft bearing

Driven shaft bearing

Middle gear flange

Bolt

Bolt

Bolt

Bolt

Bolt

Screw

Bolt

Bolt

Bolt

Bolt

Bolt

Bolt

Bolt

Bolt

Screw

Bolt

Bolt

Bolt

Bolt

Bolt

Plug

Bolt

Screw

Bolt

TORX screw

Bolt

Bolt

Screw

Screw

Bolt

Bolt

Bolt

Nut

Bolt

Bolt

Bolt

Bolt

Bolt

Bolt

Bolt

TORX screw

Nut

Nut

Nut

M20 P1.5 

M14P1.5 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M10 P1.25 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M8 PI.25 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M8 P1.25 

M6 P1.0 

M20 P1.5 

M6 P1.0 

M6 P1.0 

M10 P1.25 

M6 P1.0 

M6 P1.0 

M8 PI.25 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M20 P1.0 

M6 P1.0 

M6 P1.0 

M6 P1.0 

M8 P1.25 

M6 P1.0 

M6 P1.0 

M8 PI .25 

M8 P1.25

 M34P1.0

 M65P1.5

 M14P1.5

1 

1

13 

1 

3 

4 

3 

2 

1 

1 

2 

3 

1 

1 

2 

1 

1 

4

19

20 

2 

3 

2 

1 

3 

2 

1 

1 

2

10 

2 

6 

1 

1

10 

3 

3 

1 

2 

4 

4 

1 

1 

1

15 

43 

12 

12 

12

7 

21

7 

10 

10 

10

7

7 

2.9

8 

12 

10 

10 

24 

12 

12 

12

8 

55 

10

7 

24

8

8 

12 

12

8 

70

8 

12 

12 

25

8

8 

25 

25 

110 

110 

90

1.5

4.3

1.2

1.2

1.2

0.7

2.1

0.7

1.0

1.0

1.0

0.7

0.7

0.3

0.8

1.2

1.0

1.0

2.4

1.2

1.2

1.2

0.8

5.6

1.0

0.7

2.4

0.8

0.8

1.2

1.2

0.8

7.0

0.8

1.2

1.2

2.5

0.8

0.8

2.5

2.5

11

11

9.0

11

31

 8.7

 8.7 

8.7 

5.1

15 

5.1 

7.2 

7.2 

7.2 

5.1

 5.1

2.2 

5.8 

8.7 

7.2 

7.2

17 

8.7 

8.7 

8.7 

5.8

40 

7.2 

5.1

17 

5.8 

5.8 

8.7 

8.7 

5.8

50 

5.8 

8.7 

8.7

18 

5.8 

5.8

18

18

80

80

65

--

--

--

--

--

--

--

--

--

--

--

--

--

--

--

oil

--

--

oil

oil

oil

--

--

--

oil

--

--

--

--

--

--

--

--

--

--

--

Stake / oil

--

--

oil

--

Stake 

--

Stake / oil

Steering System: 

Steering Bearing Type

Taper Roller Bearing

Front Suspension: 

(Each) Front Fork Travel 

Fork Spring Free Length 
< Limit > 

Spring Rate/Stroke

Optional Spring Oil Capacity 

Oil Grade

Enclosed Air Pressure: 

Standard 

Minimum- Maximum

150 mm (5.9 in)

511 mm (20.1 in)
< 505 mm (19.9 in) >

K, = 3.92 N/mm (0.40 kg/mm, 22.4 lb/in)

0- 100 mm (0- 3.94 in) K₂ = 4.90 N/mm (0.50 kg/mm, 28 lb/in)

100- 150 mm (3.94- 5.90 in) No.

389 cm³ (13.7 Imp oz, 13.2 US oz) YAMAHA Fork & Shock Oil 10wt or equivalent fork oil

39.2 kPa (0.4 kg/cm², 5.7 psi)

Zero- 118 kPa

(Zero - 1.2 kg/cm², Zero - 17.1 psi)

Rear Suspension: (Each) 

Shock Absorber Travel 

Spring Free Length 

Spring Fitting Length 

Spring Rate/Stroke

70 mm (2.76 in)

243.5 mm (9.59 in)

217.5 mm (8.56 in)

K, = 21.6 N/mm (2.2 kg/mm, 123.2 lb/in)
0- 44 mm (0- 1.73 in) 
K₂ = 28.4 N/mm (2.9 kg/mm, 162.3 lb/in)
44- 70 mm (1.73- 2.76 in)

Rear Arm: 

Swingarm Free Play Limit: 
End
Side

1.0 mm (0.04 in) 
1.0 mm (0.04 in)

Wheel: 

Front Wheel Type 

Rear Wheel Type 

Front Rim Size/Material 

Rear Rim Size/Material Rim 

Runout Limit: 
Vertical
Lateral

Cast Wheel 

Cast Wheel

MT2.15x 19/Aluminum 

MT3.00x 16/Aluminum 

2.0 mm (0.08 in) 
2.0 mm (0.08 in)

Disc Brake: 
Type Front 

Outside Dia. x Thickness

Dual disc

267 x 5 mm (10.5 x 0.2 in)

Pad Thickness:

Inner 
<Limit>* 

Outer 
<Limit>*

5.5 mm (0.22 in) 
0.5 mm (0.02 in) 

5.5 mm (0.22 in) 
0.5 mm (0.02 in)

Master Cylinder Inside Dia. 

Caliper Cylinder Inside Dia. 

Brake Fluid Type

15.87 mm (0.62 in) 

38.18 mm (1.50 in) 

DOT #3

Drum Brake: Type Rear Drum Inside Dia.

<Limit> Lining Thickness

<l_imit> Shoe Spring Free Length

Leading trailing

200 mm (7.87 in)

201  mm (7.91 in) 4 mm (0.16 in)

2 mm (0.08 in) 68 mm (2.7 in)

Brake Lever Free Play 

Brake Pedal Position 

Brake Pedal Free Play

2-5mm (0.08 - 0.20 in)/at lever end

10 mm (0.4 in) below the top of the footrest

20-30mm (0.8- 0.12 in)

Part to be tightened

Part name

Thread size

Q'ty

Tightening torque

Remarks

Nm

m-kg

fflb

Engine mounting bolt: 
Front Upper
Front Lower

Nut 
Nut

M10 P1.25 M10P1.25

1 
2

 42

 4.2

30

Rear

Nut

M12 P1.25

2

90

9.0

65

Engine mounting stay

Nut

M8 P1.25

4

33

3.3

24

Downtube

Bolt

M8 P1.25

4

33

3.3

24

Downtube & Cross pipe

Nut

M8 P1.25

2

33

3.3

24

Handle crown & Steering shaft

Nut

M20 P1.0

1

110

11

80

Ring nut (Lower)

Nut

M22 P1.0

1

6

0.6

4.3

See page 6-25

Handle crown & Inner tube

Nut

M8 P1.25

2

20

2.0

14

Handle crown & Handlebar holder

Bolt

M8 PI.25

4

20

2.0

14

Under bracket & Inner tube

Bolt

M8 PI.25

4

23

2.3

17

Front wheel axle

Nut castle

M14 P1.5

1

105

10.5

75

Front wheel axle pinch bolt

Nut self locking

M8 P1.25

1

20

2.0

14

Pivot shaft (Right)

Bolt

M22P1.5

1

5.5

0.55

4.0

Taper roller bearing

Pivot shaft (Left and Right)

Bolt/Nut

M22P1.5

1

100

10.0

72

Rear wheel axle

Nut castle

M14P1.5

1

105

10.5

75

Rear wheel axle pinch bolt

Bolt

M8 P1.25

1

20

2.0

14

Rear shock absorber (Upper).

Nut cap

M8 P1.25

2

20

2.0

14

Rear shock absorber (Lower)

L Nut cap R Bolt

M10P1.25

2

30

3.0

22

Footrest

Bolt

M8 P1.25

4

29

2.9

21

Tension bar & Brake plate

Bolt

M8 P1.25

1

20

2.0

14

Tension bar & Rear arm

Bolt

M8 P1.25

1

20

2.0

14

Camshaft lever & Camshaft

Bolt

M6 P1.0

1

9

0.9

6.5

Disc brake section: Brake disc & Hub (Front)

Bolt

M8 P1.25

12

20

2.0

14

Master cylinder & Brake hose (Front)

Bolt union

M10 P1.25

1

26

2.6

19

Brake hose & Joint

Bolt union

M10 P1.25

1

26

2.6

19

Caliper & Brake hose

Bolt union

M10 P1.25 

2

26

2.6

19

Caliper & Front fork (Front)

| 

4

35

3.5

25

Caliper bleed screw (Ftont)

I 

2

6

0.6

4.3

Front fender

Bolt

M6 P1.0

4

9

0.9

6.5

Final gear & Rear arm

Nut

M10P1.25

4

42

4.2

30

Final gear:

Drive shaft

Nut

M14P1.5

1

110

11

80

Bearing housing

Flange bolt

M8 PI.25

4

25

25

18

Bearing housing

Nut

M8 P1.25

6

23

2.3

17

Oil filler cap

Plug

M14P1.5

1

23

2.3

17

Oil drain screw

Plug

M14P1.5

1

23

2.3

17

Bearing retainer

-

M65P1.5

1

110

11

80

Cross joint

Hexagon bolt with washer

M8 PI .25

4

44

4.4

32

Muffler bracket & Frame

Bolt

M8 PI.25

3

23

2.3

17

Rear fender

Bolt

M10P1.25

2

32

3.2

23

Muffler bracket & Muffler

Bolt

M10P1.25

2

25

2.5

18

A (Nut)

B (Bolt)

General torque specifications

Nm

m-kg

ft-lb

10 mm

6 mm

6

0.6

4.3

12 mm

8 mm

15

1.5

11

14 mm

10 mm

30

3.0

22

17 mm

12 mm

55

5.5

40

19 mm

14 mm

85

8.5

61

22 mm

16 mm

130

13.0

94

Unit

Read

Definition

Measure

mm cm

millimeter centimeter

10"³ meter 10^-2 meter

Length Length

kg

kilogram

10³ gram

Weight

N

Newton

1 kg x m/sec²

Force

Nm 
m-kg

Newton meter 
Meter kilogram

N x m 
m x kg

Torque 
Torque

Pa 

N/mm

Pascal

Newton per millimeter

N/m²

N/mm

Pressure 

Spring rate

L 

cm³

Liter

Cubic centimeter

Volume or Capacity

r/min

Rotation per minute

Engine Speed

Voltage:    12V

Ignition System: 

Ignition Timing (B.T.D.C.)      5° at 1,100 r/min 
Advanced Timing (B.T.D.C.) 43° at 3,500 r/min
Advancer Type                         Electrical

T.C.I.:

Pickup Coil Resistance 
(Black to Gray) 
(Black - Orange)

T.C.I. Unit — Model/Manufacturer

120Ω ± 10% at 20°C (68°F) 
120Ω ± 10% at 20°C (68°F)

TID14-35/HITACHI

Ignition Coil: 

Model/Manufacturer 

Minimum Spark Gap 

Primary Winding Resistance 

Secondary Winding Resistance

CM12-25/HITACHI

6 mm (0.24 in) or more at 500 r/min

2.7Ω ± 10% at 20°C (68°F)

12 kΩ ± 20% at 20°C (68°F)

Charging System: Type

A.C. Generator

A.C. Generator: Model/Manufacturer Nominal Output

LD119-19/HITACHI 14V, 26A at 5,000 r/min

Field Coil Resistance 

Stator Coil Resistance 

Brush Overall Length
<Limit> 

Brush Spring Pressure

4.0Ω ± 10% at 20°C (68°F) (Direct)

0.46Ω ± 10% at 20°C (68°F) (White - White)

17 mm (0.67 in)
10 mm (0.39 in)

190-360 g (6.7- 12.7 oz)

Voltage Regulator: 

Type

Model/Manufacturer 

No Load Regulated Voltage

Semi conductor. Field control

SH233-12/SHINDENGEN 

14.5 ± 0.3V

Rectifier: Model/Manufacturer Capacity

SH233-12/SHINDENGEN 35A

Battery: Capacity Specific Gravity

12V 14AH 1.280

Electric Starter System: 

Type 

Starter Motor:

Model/Manufacturer

Output 

Armature Coil Resistance 

Brush:
Overall Length 
<Limit>

Spring Pressure 

Commutator Diameter:

Wear Limit

Mica Undercut 

Starter Relay:

Amperage Rating

Constant-mesh type

ADB4D2/NIPPONDENSO

0.6 kW

0.014Ω ±6% at 20°C(68°F)

12 mm (0.47 in)
8.5 mm (0.34 in)

800 ± 150 g (28.22 ± 5.29 oz)

28 mm (1.10 in)

27 mm (1.06 in)

0.4 - 0.8 mm (0.02 ~ 0.03 in)

150A

Horn:

Type x Quantity Model/Manufacturer Maximum Amperage

Plain type x 2 CF12/NIKKO 
2.5A

Relay Assembly:

Model/Manufacturer Flasher Relay:

Type

Self Cancelling Device

Flasher Frequency

Wattage Starting-Circuit Cut-off Relay:

Color Code

FX257N2/NIPPONDENSO

Semi Transistor Type

Yes

60- 120cycle/min

27W x 2 pcs + 3W

No.

Sidestand Relay: 

Model/Manufacturer 

Color Code

G2MW-D-3636/TATEISHI 

Blue

Oil Level Switch: 

Model/Manufacutrer

4H7/NIPPONDENSO

Fuel Level Sender: 

Winding Coil Resistance

1.1 ±0.2kΩ at20°C(68°F)

Circuit Breaker:

Type

Amperage for Individual Circuit x Quantity:

MAIN

HEADLIGHT 

SIGNAL 

IGNITION 

FAN 

RESERVE

Fuse

30Ax 1 

15Ax 1 

15Ax 1 

10Ax 1 

10Ax 1 

30Ax 1 
15Ax 1 
10Ax 1

XJ750XN

Headlight Type:

Semi-sealed beam (Quartz bulb)

Bulb Wattage x Quantity: 

Headlight 
Tail/Brake Light 
Flasher Light

12V, 60W/55W
12V,8W/27Wx2
12V,27Wx4

Indicator Light:

Wattage x Quantity: 
Meter Light
"NEUTRAL"
"HIGH BEAM" 
"TURN" 
"OIL LEVEL" 
"FUEL"

12V,3Wx4 
12V, 3Wx 1 
12V, 3Wx1 
12V, 3Wx2 
12V,3Wx1 
12V,3Wx1