compression ratio YAMAHA FZ8 N 2011 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-20
3

Do not exceed the maximum
loa d of FZ8-N 199 k g (439 lb )
FZ8-NA 194 k g (428 lb ) for the
vehicle.
EAU55261
A djustin g the front fork
WARNING
EWA14671
Always a djust the sprin g preloa d on
b oth fork le gs equally, otherwise
poor han dlin g an d loss of sta bility
may result.Each front fork leg is equipped with a
spring preload adjusting bolt. The right
front fork leg is equipped with a re-
bound damping force adjusting screw
and compression damping force ad-
justing screw.NOTICE
ECA10102
To avoi d d amag ing the mechanism,
d o not attempt to turn b eyond the
maximum or minimum settin gs.Sprin g preloa d
To increase the spring preload and
thereby harden the suspension, turn
the adjusting bolt on each fork leg in di-
rection (a). To decrease the spring pre-
load and thereby soften the
suspension, turn the adjusting bolt on
each fork leg in direction (b). The spring preload setting is deter-
mined by measuring distance A,
shown in the illustration. The shorter
distance A is, the higher the spring pre-
load; the longer distance A is, the lower
the spring preload.
1. Spring preload adjusting bolt
1. Distance A
1
1
(a)
(b)
(a)
(b)
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-43
6
To install the rear wheel
1. Install the wheel and the brake cal- iper bracket by inserting the wheel
axle from the left-hand side.
TIPMake sure that the slot in the
brake caliper bracket is fit over the
retainer on the swingarm.
 Make sure that there is enough
space between the brake pads
before installing the wheel.2. Install the drive chain onto the rear
sprocket.
3. Install the axle nut. 4. Lower the rear wheel so that it is
on the ground, and then put the
sidestand down.
5. Adjust the drive chain slack. (See page 6-25.)
6. Tighten the axle nut, and then tighten the locknuts to the speci-
fied torques.
EAU25872
Trou bleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water
1. Slot
2. Retainer
1
2
Ti ghtenin g torques:
Axle nut: 150 Nm (15 m·kgf, 108 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U2SHE1E0.book Page 43 Tuesday, July 15, 2014 4:04 PM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:2140 mm (84.3 in)
Overall width:
770 mm (30.3 in)
Overall height: 1065 mm (41.9 in)
Seat height: 815 mm (32.1 in)
Wheelbase:
1460 mm (57.5 in)
Ground clearance: 140 mm (5.51 in)
Minimum turning radius: 3000 mm (118.1 in)Wei ght:Curb weight:
FZ8-N 211 kg (465 lb)
FZ8-NA 216 kg (476 lb)Engine:Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Inline 4-cylinder
Displacement: 779 cm³
Bore × stroke:
68.0 × 53.6 mm (2.68 × 2.11 in)
Compression ratio:
12.0 : 1
Starting system: Electric starter
Lubrication system: Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade: API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter cartridge replacement:2.90 L (3.07 US qt, 2.55 Imp.qt)
With oil filter cartridge replacement:
3.10 L (3.28 US qt, 2.73 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 2.25 L (2.38 US qt, 1.98 Imp.qt)Air filter:Air filter element:Oil-coated paper element
Fuel:Recommended fuel:Regular unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity: 17.0 L (4.49 US gal, 3.74 Imp.gal)
Fuel reserve amount:
3.4 L (0.90 US gal, 0.75 Imp.gal)Fuel injection:Throttle body:ID mark:39PL 20Spark plu g(s):Manufacturer/model:
NGK/CR9E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction ratio:1.512 (65/43)
Final drive:
Chain
Secondary reduction ratio: 2.875 (46/16)
Transmission type: Constant mesh 6-speed
Operation:
Left foot operation
Gear ratio: 1st:
2.692 (35/13)
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
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