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Motorcycle - Specifications
Model Name FZ400R Model Code 46X0
Model Year 1985 Destination JAPAN
Section/Item Chassis
Maintenance Specification (Chassis)
Chassis
Frame type Double cradle
Caster angle 26.00 ゜
Trail 101 mm
Front wheel
Wheel type Cast wheel
Rim size 16 x MT2.50
Rim material Aluminum
Wheel travel 140.0 mm
Radial wheel runout limit 1.0 mm
Lateral wheel runout limit 0.5 mm
Wheel axle bending limit 0.25 mm
Rear wheel
Wheel type Cast wheel
Rim size 18 x MT2.75
Rim material Aluminum
Wheel travel 102.0 mm
Radial wheel runout limit 1.0 mm
Lateral wheel runout limit 0.5 mm
Wheel axle bending limit 0.25 mm
Front tire
Type Tubeless
Size 100/90-16 54H
Manufacturer/model DUNLOP/K125
Manufacturer/model YOKOHAMA/F202
Rear tire
Type Tubeless
Size 120/80-18 62H
Manufacturer/model DUNLOP/K225
Manufacturer/model YOKOHAMA/R202
Tire air pressure (measured on cold tires)
Front 175 kPa
Rear 200 kPa
Front 200 kPa
Rear 225 kPa
Front brake
Type Dual disc brake
Operation Right hand operation
Front brake lever free play 5.0-8.0 mm
Front disc brake
Disc outside diameter × thickness 267.0 x 5.0 mm
Brake disc deflection limit 0.50 mm
Brake pad lining thickness (inner) 5.5 mm
Limit 0.5 mm
Brake pad lining thickness (outer) 5.5 mm
Limit 0.5 mm
Master cylinder inside diameter 15.80 mm
Caliper cylinder inside diameter 42.80 mm
Specified brake fluid DOT 3
Rear brake
Type Single disc brake
Operation Right foot operation
Brake pedal position 40.0 mm
Brake pedal free play 13.0-15.0 mm
Rear disc brake
Disc outside diameter × thickness 245.0 x 5.0 mm
Brake disc deflection limit 0.50 mm
Brake pad lining thickness (inner) 5.5 mm
Limit 0.5 mm
Brake pad lining thickness (outer) 5.5 mm
Limit 0.5 mm
Master cylinder inside diameter 14.0 mm
Caliper cylinder inside diameter 38.10 mm
Specified brake fluid DOT 3
Steering
Steering bearing type Ball bearing
Center to lock angle (left) 30.0 ゜
Center to lock angle (right) 30.0 ゜
No./size of steel balls
(Upper) 19 pcs/0.250 in
(Lower) 19 pcs/0.250 in
Front suspension
Type Telescopic fork
Spring/shock absorber type Coil-air spring/oil damper
Front fork travel 140.0 mm
Fork spring free length 517.5 mm
Limit 507.0 mm
Spring rate K1 3.50 N/mm
Spring rate K2 5.10 N/mm
Spring stroke K1 0.0-95.0 mm
Spring stroke K2 95.0-140.0 mm
Optional spring available No
Recommended oil Fork oil 10W or equivalent
Quantity 315.0 cm3
Level 117.0 mm
Enclosed gas/air pressure (STD) 40.0 kPa
Inner tube outer diameter 36.0 mm
Inner tube bending limit 0.2 mm
Rear suspension
Type Swingarm (link suspension)
Spring/shock absorber type Coil spring/gas-oil damper
Rear shock absorber assembly travel 40.0 mm
Spring free length 186.0 mm
Installed length 168.0 mm
Spring rate K1 98.10 N/mm
Spring stroke K1 0.0-40.0 mm
Optional spring available No
Enclosed gas/air pressure (STD) 1200 kPa
Swingarm
Swingarm end free play limit (radial) 1.0 mm
Swingarm end free play limit (axial) 1.0 mm
Drive chain
Type/manufacturer 520V-SR/DAIDO
Number of links 104
Drive chain slack 20.0-30.0 mm
Maximum ten-link section 150.1 mm
Drive belt
Motorcycle - Specifications
Model Name FZ400R Model Code 46X0
Model Year 1985 Destination JAPAN
Section/Item General Specifications
General Specification
Dimensions
Overall length 2025 mm
Overall width 690 mm
Overall height 1145 mm
Seat height 785 mm
Wheelbase 1385 mm
Ground clearance 145 mm
Minimum turning radius 3200 mm
Weight
Curb weight 188 kg
Performance
Climbing ability 28.0 ゜
Braking distance 14.0 m/50.0 km/h
Maximum horse power 43.40 kW@12000 r/min
Maximum torque 36.30 Nm@10000 r/min
Motorcycle - Specifications
Model Name FZ400R Model Code 46X0
Model Year 1985 Destination JAPAN
Section/Item Engine
Maintenance Specification (Engine)
Engine
Engine type Liquid cooled 4-stroke, DOHC
Displacement 399 cm3
Cylinder arrangement Inline 4-cylinder
Bore × stroke 54.0 x 43.6 mm
Compression ratio 11.50 : 1
Standard compression pressure (at sea level) 950 kPa/400 r/min
Lubrication system Wet sump
Starting system Electric starter
Fuel
Recommended fuel Regular unleaded gasoline
Fuel tank capacity 18.0 L
Fuel reserve amount 3.0 L
Engine oil quantity
Periodic oil change 2.20 L
With oil filter replacement 2.50 L
Total amount 2.90 L
Oil pump
Oil filter type Paper
Oil pump type Trochoid
Inner-rotor-to-outer-rotor-tip clearance 0.030-0.090 mm
Limit 0.15 mm
Outer-rotor-to-oil-pump-housing clearance 0.09-0.15 mm
Limit 0.20 mm
Oil-pump-housing-to-inner-and-outer-rotor clearance 0.03-0.08 mm
Limit 0.15 mm
Bypass valve opening pressure 80.0-120.0 kPa
Relief valve operating pressure 450.0-550.0 kPa
Oil pressure 80.0 kPa/1200 r/min
Cooling system
Radiator capacity (including all routes) 2.30 L
Radiator capacity 0.64 L
Coolant reservoir capacity (up to the maximum level
mark) 0.60 L
Radiator cap opening pressure 75.0-105.0 kPa
Radiator core
Width 160.0 mm
Height 325.0 mm
Depth 32.0 mm
Water pump
Water pump type Single suction centrifugal pump
Reduction ratio 22/21 x 27/14 (2.020)
Thermostat
Model/manufacturer 46X/NIPPON THERMOSTAT
Valve opening temperature 80.0-84.0 ゜C
Valve full open temperature 95.0 ゜C
Valve lift (full open) 8.0 mm
Spark plug(s)
Manufacturer/model NGK/D8EA
Manufacturer/model DENSO/X24ES-U
Spark plug gap 0.6-0.7 mm
Cylinder head
Combustion chamber volume 8.10-8.70 cm3
Warpage limit 0.05 mm
Camshaft
Drive system Chain drive (center)
Camshaft cap inside diameter 23.000-23.021 mm
Camshaft journal diameter 22.967-22.980 mm
Camshaft-journal-to-camshaft-cap clearance 0.020-0.054 mm
Limit 0.160 mm
Camshaft lobe dimensions
Intake A 33.284-33.384 mm
Limit 33.234 mm
Intake B 28.155-28.255 mm
Limit 28.105 mm
Exhaust A 32.990-33.090 mm
Limit 32.940 mm
Exhaust B 28.185-28.285 mm
Limit 28.135 mm
Camshaft runout limit 0.050 mm
Timing chain
Model/number of links SILENT-CHAIN/136
Tensioning system Automatic
Rocker arm/rocker arm shaft
Rocker arm inside diameter 12.000-12.018 mm
Rocker arm shaft outside diameter 11.976-11.991 mm
Rocker-arm-to-rocker-arm-shaft clearance 0.009-0.042 mm
Valve clearance (cold)
Intake 0.13-0.17 mm
Exhaust 0.23-0.27 mm
Valve dimensions
Valve head diameter (intake) 20.90-21.10 mm
Valve head diameter (exhaust) 17.90-18.10 mm
Valve face width (intake) 1.840 mm
Valve face width (exhaust) 1.840 mm
Valve seat width (intake) 0.90-1.10 mm
Valve seat width (exhaust) 0.90-1.10 mm
Valve margin thickness (intake) 0.70 mm
Valve margin thickness (exhaust) 0.70 mm
Valve stem diameter (intake) 4.975-4.990 mm
Limit 4.945 mm
Valve stem diameter (exhaust) 4.960-4.975 mm
Limit 4.920 mm
Valve guide inside diameter (intake) 5.000-5.012 mm
Limit 5.045 mm
Valve guide inside diameter (exhaust) 5.000-5.012 mm
Limit 5.020 mm
Valve-stem-to-valve-guide clearance (intake) 0.010-0.037 mm
Valve-stem-to-valve-guide clearance (exhaust) 0.025-0.052 mm
Valve stem runout 0.030 mm
Inner spring
Free length (intake) 32.62 mm
Limit 28.50 mm
Free length (exhaust) 32.62 mm
Limit 28.50 mm
Installed length (intake) 27.69 mm
Installed length (exhaust) 27.69 mm
Installed compression spring force (intake) 50.30-55.60 N
Installed compression spring force (exhaust) 50.30-55.60 N
Spring tilt (intake) 1.4 mm
Spring tilt (exhaust) 1.4 mm
Winding direction (intake) Counter clockwise
Winding direction (exhaust) Counter clockwise
Outer spring
Free length (intake) 38.02 mm
Limit 33.00 mm
Free length (exhaust) 38.02 mm
Limit 33.00 mm
Installed length (intake) 30.09 mm
Installed length (exhaust) 30.09 mm
Installed compression spring force (intake) 107.10-118.50 N
Installed compression spring force (exhaust) 107.10-118.50 N
Spring tilt (intake) 1.7 mm
Spring tilt (exhaust) 1.7 mm
Winding direction (intake) Clockwise
Winding direction (exhaust) Clockwise
Cylinder
Bore 54.000-54.005 mm
Wear limit 54.100 mm
Warp limit 0.10 mm
Piston
Piston-to-cylinder clearance 0.040-0.060 mm
Diameter D 53.945-53.960 mm
Height H 7.0 mm
Piston pin bore inside diameter 15.002-15.013 mm
Limit 15.030 mm
Offset 0.50 mm
Offset direction Intake side
Piston pin outside diameter 14.995-15.000 mm
Limit 14.975 mm
Top ring
Ring type Barrel
Dimensions (B × T) 0.80 x 2.10 mm
End gap (installed) 0.15-0.30 mm
Limit 0.70 mm
Ring side clearance 0.030-0.070 mm
Limit 0.150 mm
2nd ring
Ring type Taper
Dimensions (B × T) 1.00 x 2.10 mm
End gap (installed) 0.15-0.30 mm
Limit 0.70 mm
Ring side clearance 0.020-0.060 mm
Limit 0.150 mm
Oil ring
Dimensions (B × T) 2.50 x 2.80 mm
End gap (installed) 0.20-0.70 mm
Connecting rod
Oil clearance 0.016-0.040 mm
Crankshaft
Width B 310.80-312.00 mm
Runout limit C 0.030 mm
Big end side clearance D 0.160-0.262 mm
Big end radial clearance E 0.016-0.040 mm
Journal oil clearance 0.040-0.064 mm
Clutch
Clutch type Wet, multiple-disc
Clutch release method Outer pull, rack and pinion pull
Clutch lever free play 10.0-15.0 mm
Friction plate thickness 2.90-3.10 mm
Wear limit 2.70 mm
Plate quantity 8 pcs
Clutch plate thickness 1.60 mm
Plate quantity 7 pcs
Warpage limit 0.15 mm
Clutch spring free length 41.20 mm
Spring quantity 5 pcs
Limit 39.20 mm
Transmission
Transmission type Constant mesh 6-speed
Primary reduction ratio 22/21 x 68/25 (2.849)
Secondary reduction ratio 46/16 (2.875)
Final drive Chain
Operation Left foot operation
Gear ratio
1st 41/15 (2.733)
2nd 37/19 (1.947)
3rd 34/22 (1.545)
4th 31/25 (1.240)
5th 29/27 (1.074)
6th 27/29 (0.931)
Main axle runout limit 0.08 mm
Drive axle runout limit 0.08 mm
Shifting mechanism
Shift mechanism type Guide bar
Air filter
Air filter element Dry element
Carburetor
Type × quantity BS30 x 4
Manufacturer MIKUNI
ID mark 46X 00
Main jet #100
Main air jet #150
Jet needle 4CL14-3
Needle jet O-2
Pilot air jet 1 #185
Pilot outlet 0.9
Pilot jet #35
Bypass 1 0.8
Bypass 2 0.8
Bypass 3 0.8
Pilot screw turns out 2.0
Valve seat size 2.0
Starter jet 1 #20
Starter jet 2 0.5
Float height 21.0-23.0 mm
Fuel level A (using fuel level gauge) 3.0-5.0 mm
Throttle grip free play 3.0-7.0 mm
Idling condition
Engine idling speed 1200-1300 r/min
CO% 3.5-4.5 %
Intake vacuum 16.0 kPa
Water temperature 75.0-85.0 ゜C
Oil temperature 60.0-70.0 ゜C
Shaft drive
Motorcycle - Specifications
Model Name FZ400R Model Code 46X0
Model Year 1985 Destination JAPAN
Section/Item Electrical
Maintenance Specification (Electrical)
System voltage 12 V
Ignition system
Ignition system TCI
Ignition timing (B.T.D.C.) 15.0 ゜/1200 r/min
Advancer type Electrical
TCI
Pickup coil resistance 120 Ω±10 %
TCI unit model/manufacturer TID14-20/HITACHI
Ignition coil
Model/manufacturer CM12-23/HITACHI
Primary coil resistance 2.70 Ω±10 %
Secondary coil resistance 12.0 kΩ±20 %
Spark plug cap
Material Resin
Resistance 10.0 kΩ
AC generator
Model/manufacturer LD117-15/HITACHI
Standard output 14.0 V, 20.0 A@5000 r/min
Field coil resistance 3.00 Ω±10 %
Armature coil resistance 0.55 Ω±10 %
Brush overall length 17.0 mm
Limit 10.0 mm
Brush spring pressure 1.86-3.53 N
Rectifier/regulator
Regulator type Semi conductor-short circuit
Model/manufacturer SH233-12/SHINDENGEN
No load regulated voltage 14.0-15.0 V
Rectifier
Rectifier capacity 15.0 A
Withstand voltage 300.0 V
Battery
Model 12N12A-4A
Voltage, capacity 12 V, 12.0 Ah
Specific gravity 1.280
Headlight
Bulb type Halogen bulb
Bulb voltage, wattage × quantity
Headlight 12 V, 35 W/35.0 W x 2
Auxiliary light 12 V3.4 W x 2 pcs
Tail/brake light 12 V8 W/27.0 W x 2 pcs
Flasher light 12 V27.0 W x 4 pcs
Meter lighting 12 V3.4 W x 5 pcs
Indicator light
Neutral indicator light 12 V3.4 W x 1 pcs
Turn indicator light 12 V3.4 W x 1 pcs
Oil level indicator light 12 V3.4 W x 1 pcs
High beam indicator light 12 V3.4 W x 1 pcs
Speed warning indicator light 12 V3.4 W x 1 pcs
Electric starting system
System type Constant mesh
Starter motor
Model/manufacturer SM-7256/MITSUBA
Power output 0.40 kW
Armature coil resistance 0.0140 Ω±10 %
Brush overall length 10.5 mm
Limit 5.00 mm
Brush spring force 3.92-5.88 N
Commutator diameter 23.0 mm
Limit 22.0 mm
Mica undercut (depth) 1.80 mm
Starter relay
Model/manufacturer A104-128/HITACHI
Amperage 100.0 A
Horn
Horn type Plane
Quantity 1
Model/manufacturer YF-12/NIKKO
Maximum amperage 2.5 A
Turn signal relay
Relay type Condenser
Model/manufacturer FZ257SD/DENSO
Built-in, self-canceling device No
Turn signal blinking frequency 75-95 cycles/min
Wattage 27 W x 2.0 +3.4 W
Oil level gauge
Model/manufacturer 4U8/DENSO
Starting circuit cut-off relay
Model/manufacturer 25G/OMRON
Coil resistance 75 Ω±10 %
Thermostat switch
Model/manufacturer 47X/NIPPON THERMOSTAT
Thermo unit
Model/manufacturer 46X/NIPPON SEIKI
Fuses
Main fuse 30.0 A
Headlight fuse 20.0 A
Signaling system fuse 10.0 A
Ignition fuse 10.0 A
Radiator fan fuse 7.0 A
Spare fuse 30.0 A
Spare fuse 20.0 A
Spare fuse 10.0 A
Spare fuse 7.0 A
Motorcycle - Specifications
Model Name FZ400R Model Code 46X0
Model Year 1985 Destination JAPAN
Section/Item Periodic maintenance
Periodic maintenance
Engine
Displacement 399 cm3
Bore × stroke 54.0 x 43.6 mm
Compression ratio 11.50 : 1
Standard compression pressure (at sea level) 950 kPa/400 r/min
Valve clearance (cold)
Intake 0.13-0.17 mm
Exhaust 0.23-0.27 mm
Piston
Piston-to-cylinder clearance 0.040-0.060 mm
Top ring
End gap (installed) 0.15-0.30 mm
2nd ring
End gap (installed) 0.15-0.30 mm
Carburetor
Type × quantity BS30 x 4
Manufacturer MIKUNI
ID mark 46X 00
Main jet #100
Jet needle 4CL14-3
Pilot jet #35
Pilot screw turns out 2.0
Float height 21.0-23.0 mm
Fuel level A (using fuel level gauge) 3.0-5.0 mm
Idling condition
Engine idling speed 1200-1300 r/min
Engine oil quantity
Periodic oil change 2.20 L
With oil filter replacement 2.50 L
Transmission
Final drive Chain
Secondary reduction ratio 46/16 (2.875)
Drive chain
Type/manufacturer 520V-SR/DAIDO
Number of links 104
Front tire
Size 100/90-16 54H
Front 175 kPa
Rear tire
Size 120/80-18 62H
Rear 200 kPa
Fuel
Fuel tank capacity 18.0 L
Front suspension
Quantity 315.0 cm3
Recommended oil Fork oil 10W or equivalent
Battery
Voltage, capacity 12 V, 12.0 Ah
Model 12N12A-4A
TCI
Pickup coil resistance 120 Ω±10 %
Ignition coil
Primary coil resistance 2.70 Ω±10 %
Secondary coil resistance 12.0 kΩ±20 %
Spark plug(s)
Manufacturer/model NGK/D8EA
Manufacturer/model DENSO/X24ES-U
Spark plug gap 0.6-0.7 mm
Ignition system
Ignition timing (B.T.D.C.) 15.0 ゜/1200 r/min
Motorcycle - Specifications
Model Name FZ400R Model Code 46X0
Model Year 1985 Destination JAPAN
Section/Item Pattern 1
General Specification
Dimensions
Wheelbase 1385 mm
Weight
Dry (without oil and fuel) 165.0 kg
Performance
Braking distance 14.0 m/50.0 km/h
Maximum horse power 43.40 kW@12000 r/min
Maintenance Specification (Engine)
Spark plug(s)
Manufacturer/model NGK/D8EA
Manufacturer/model DENSO/X24ES-U
Maintenance Specification (Chassis)
Chassis
Frame type Double cradle
Recommended