compression ratio YAMAHA FZ8 S 2010 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-21
3The 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. Re
boun d d ampin g force
The rebound damping force is adjust-
ed on the right front fork leg only.
To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting screw in
direction (a). To decrease the rebound
damping force and thereby soften the
rebound damping, turn the adjusting
screw in direction (b). Compression
dampin g force
The compression damping force is ad-
justed on the right front fork leg only.
To increase the compression damping
force and thereby harden the com-
pression damping, turn the adjusting
screw in direction (a). To decrease the
compression damping force and there-
by soften the compression damping,
turn the adjusting screw in direction (b).
1. Spring preload adjusting bolt
1. Distance A
1
1
(a)
(b)
(a)
(b)
1
Sprin g preloa d setting :
Minimum (soft):
Distance A = 14.0 mm (0.55 in)
Standard:
Distance A = 11.0 mm (0.43 in)
Maximum (hard): Distance A = 4.0 mm (0.16 in)1. Rebound damping force adjusting screw
1
(a)
(b)
Re boun d d ampin g setting :
Minimum (soft):
11 click(s) in direction (b)*
Standard:
8 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting screw fully turned in direction (a)
U42PE4E0.book Page 21 Wedne sday, August 6, 2014 3:25 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-44
64. 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 6-27.)
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, do
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot lig hts from water heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plod e, causin g severe injury or prop-
erty damag e.
Tightenin g torques:
Axle nut: 150 Nm (15 m·kgf, 108 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U42PE4E0.book Page 44 Wedne sday, August 6, 2014 3:25 PM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:2140 mm (84.3 in)
Overall width:
770 mm (30.3 in)
Overall height: 1225 mm (48.2 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-S 215 kg (474 lb)
FZ8-SA 220 kg (485 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
U42PE4E0.book Page 1 Wedne sday, August 6, 2014 3:25 PM