Yamaha Fz6 N Service Manual

ENGINE SPECIFICATIONS
2-6
PistonPiston-to-cylinder clearance 0.010–0.035 mm (0.0004–0.0014 in)
Limit 0.05 mm (0.0020 in)
Diameter D 65.475–65.490 mm (2.5778–2.5783 in)
Height H 4.0 mm (0.16 in)
Offset 0.50 mm (0.0197 in)
Offset direction Intake side
Piston pin bore inside diameter 16.002–16.013 mm (0.6300–0.6304 in)
Limit 16.043 mm (0.6316 in)
Piston pin outside diameter 15.991–16.000 mm (0.6296–0.6299 in)
Limit 15.971 mm (0.6288 in)
Piston-pin-to-piston-pin-bore clearance 0.002–0.022 mm (0.0001–0.0009...

ENGINE SPECIFICATIONS
2-7
Oil ringDimensions (B  × T) 1.50  × 2.00 mm (0.06  × 0.08 in)
End gap (installed) 0.10–0.35 mm (0.0039–0.0138 in)
 
Connecting rod Oil clearance (using plastigauge®) 0 .028–0.052 mm (0.0011–0.0020 in)
Limit 0.08 mm (0.0032 in)
Bearing color code 1.Blue 2.Black 3.Brown 4.Green
 
Crankshaft Width A 51.850–52.550 mm (2.04–2.06 in)
Width B 268.80–270.00 mm (10.58–10.63 in)
Runout limit C 0.030 mm (0.0012 in)
Big end side clearance D 0.160–0.262 mm (0.0063–0.0103 in)
Big end radial...

ENGINE SPECIFICATIONS
2-8
TransmissionTransmission type Constant mesh 6-speed
Primary reduction system Spur gear
Primary reduction ratio 86/44 (1.955)
Secondary reduction system Chain drive
Secondary reduction ratio 46/16 (2.875)
Operation Left foot operation
Gear ratio1st 37/13 (2.846)
2nd 37/19 (1.947)
3rd 28/18 (1.556)
4th 32/24 (1.333)
5th 25/21 (1.190)
6th 26/24 (1.083)
Main axle runout limit 0.02 mm (0.0008 in)
Drive axle runout limit 0.02 mm (0.0008 in)
 
Shifting mechanismShift mechanism type...

CHASSIS SPECIFICATIONS
2-9
EAS20300
CHASSIS SPECIFICATIONS
ChassisFrame type Diamond
Caster angle 25.00  °
Trail 97.5 mm (3.84 in)
 
Front wheel Wheel type Cast wheel
Rim size 17M/C x MT3.50
Rim material Aluminum
Wheel travel 130.0 mm (5.12 in)
Radial wheel runout limit 1.0 mm (0.04 in)
Lateral wheel runout limit 0.5 mm (0.02 in)
 
Rear wheel
Wheel type Cast wheel
Rim size 17M/C x MT5.50
Rim material Aluminum
Wheel travel 130.0 mm (5.12 in)
Radial wheel runout limit 1.0 mm (0.04 in)
Lateral wheel runout...

CHASSIS SPECIFICATIONS
2-10
6.0 mm (0.24 in) (FZ6-S/FZ6-SA/FZ6-N/FZ6-
NA)
Limit 0.5 mm (0.02 in) (FZ6-SHG(W)/FZ6-SAHG/ FZ6-NHG(W)/FZ6-NAHG) 
0.8 mm (0.03 in) (FZ6-S/FZ6-SA/FZ6-N/FZ6-
NA)
Brake pad lining thickness (outer) 4.5  mm (0.18 in) (FZ6-SHG(W)/FZ6-SAHG/
FZ6-NHG(W)/FZ6-NAHG) 
6.0 mm (0.24 in) (FZ6-S/FZ6-SA/FZ6-N/FZ6-
NA)
Limit 0.5 mm (0.02 in) (FZ6-SHG(W)/FZ6-SAHG/ FZ6-NHG(W)/FZ6-NAHG) 
0.8 mm (0.03 in) (FZ6-S/FZ6-SA/FZ6-N/FZ6-
NA)
Master cylinder inside diameter 16.00 mm (0.63 in)
Caliper...

CHASSIS SPECIFICATIONS
2-11
Rear suspensionType Swingarm (monocross)
Spring/shock absorber type Coil spring/gas-oil damper
Rear shock absorber assembly travel 50.0 mm (1.97 in)
Spring free length 185.0 mm (7.28 in)
Installed length 172.0 mm (6.77 in)
Spring rate K1 127.40 N/mm (727.45 lb/in) (12.99 kgf/mm)
Spring stroke K1 0.0–50.0 mm (0.00–1.97 in)
Optional spring available No
Enclosed gas/air pressure (STD) 1200 kPa (170.7 psi) (12.0 kgf/cm²)
Spring preload adjusting positions (Minimum) 1
Spring...

ELECTRICAL SPECIFICATIONS
2-12
EAS20310
ELECTRICAL SPECIFICATIONS
Vo l t a g eSystem voltage 12 V
 
Ignition systemIgnition system Transistorized coil ignition (digital)
Ignition system type DC. TCI
Advancer type Digital
Ignition timing (B.T.D.C.) 5.0  °/1300 r/min
 
Engine control unit
Model/manufacturer FUA0015/MITSUBISHI (FZ6-SHG(W)/FZ6- NHG(W))
FUA0018/MITSUBISHI (FZ6-NAHG/FZ6-
SAHG) 
FUA0019/MITSUBISHI (FZ6-SA/FZ6-NA) 
FUA0020/MITSUBISHI (FZ6-S/FZ6-N)
 
Ignition coil
Model/manufacturer JO383/DENSO...

ELECTRICAL SPECIFICATIONS
2-13
12 V, 5.0 W × 2 (FZ6-S/FZ6-SA/FZ6-SHG(W)/
FZ6-SAHG)
Tail/brake light 12 V, 5.0 W/21.0 W  × 1
Front turn signal light 12 V, 10.0 W  × 2
Rear turn signal light 12 V, 10.0 W  × 2
License plate light 12 V, 5.0 W  × 1
Meter lighting LED  (FZ6-SHG(W)/FZ6-SAHG/FZ6-NHG(W)/ FZ6-NAHG) 
EL backlight LCD (FZ6-S/FZ6-SA/FZ6-N/FZ6-
NA)
 
Indicator light
Neutral indicator light LED
Turn signal indicator light LED
Oil level warning light LED
High beam indicator light LED
Coolant...

ELECTRICAL SPECIFICATIONS
2-14
Fuel gaugeModel/manufacturer 5VX/DENSO
Sender unit resistance (full) 19.0–21.0  Ω
Sender unit resistance (empty) 139.0–141.0  Ω
 
Starting circuit cut-off relay
Model/manufacturer G8R-30Y-V3/OMRON
Coil resistance 162–198  Ω
 
Radiator fan motor relay
Model/manufacturer ACM33211M05/MATSUSHITA
Coil resistance 86.4–105.6  Ω
 
Headlight relay
Model/manufacturer ACM33211M05/MATSUSHITA
Coil resistance 86.4–105.6  Ω
 
Fuel injection system relay
Model/manufacturer...

TIGHTENING TORQUES
2-15
EAS20320
TIGHTENING TORQUES
EAS20330
GENERAL TIGHTENING TORQUE SPECIFI-
CATIONS
This chart specifies tightening torques for stan-
dard fasteners with a standard ISO thread 
pitch. Tightening torque specifications for spe-
cial components or assemblies are provided 
for each chapter of this manual. To avoid 
warpage, tighten multi-fastener assemblies in 
a crisscross pattern and progressive stages 
until the specified tightening torque is reached. 
Unless otherwise specified,...