compression ratio YAMAHA YZF-R6 2016 Owners Manual

Instrument and control functions
3-22
3
EAU39672
Rear view mirrorsThe rear view mirrors of this vehicle
can be folded forward or backward for
parking in narrow spaces. Fold the mir-
rors back to their original position be-
fore riding.
WARNING
EWA14372
Be sure to fol d the rear view mirrors
b ack to their ori ginal position before
ri din g.
EAU70520
A djustin g the front fork
WARNING
EWA10181
Always a djust both fork leg s equally,
otherwise poor han dlin g an d loss of
sta bility may result.This front fork is equipped with spring
preload adjusting bolts, rebound
damping force adjusting screws, com-
pression damping force adjusting bolts
(for fast compression damping) and
compression damping force adjusting
bolts (for slow compression damping).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. Riding position
2. Parking position
2
2
1
2
2
1
1. Spring preload adjusting bolt
1. Distance A
1
(a) (b)
1
U2CXE2E0.book Page 22 Tuesday, June 9, 2015 5:04 PM

Periodic maintenance an d a djustment
6-44
6
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 heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plo de, causin g severe injury or prop-
erty damag e.
U2CXE2E0.book Page 44 Tuesday, June 9, 2015 5:04 PM

Specifications
8-1
8
Dimensions:Overall length:2040 mm (80.3 in)
Overall width:
705 mm (27.8 in)
Overall height: 1095 mm (43.1 in)
Seat height: 850 mm (33.5 in)
Wheelbase:
1375 mm (54.1 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius: 3.6 m (11.81 ft)Wei ght:Curb weight:
189 kg (417 lb)Engine:Combustion cycle:
4-stroke
Cooling system: Liquid cooled
Valve train: DOHC
Cylinder arrangement:
Inline
Number of cylinders: 4-cylinder
Displacement: 599 cm³
Bore × stroke:
67.0 × 42.5 mm (2.64 × 1.67 in) Compression ratio:
13.1 : 1
Starting system: Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
SAE viscosity grades:
10W-40
Recommended engine oil grade: API service SG type or higher, JASO
standard MA
Engine oil quantity: Oil change:
2.40 L (2.54 US qt, 2.11 Imp.qt)
With oil filter removal: 2.60 L (2.75 US qt, 2.29 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):
2.30 L (2.43 US qt, 2.02 Imp.qt)Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Premium unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity: 17 L (4.5 US gal, 3.7 Imp.gal) Fuel reserve amount:
3.5 L (0.92 US gal, 0.77 Imp.gal)
Fuel injection:Throttle body:
ID mark:13S1 00Spark plu g(s):Manufacturer/model:
NGK/CR10EK
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:Wet, multiple-discDrivetrain:Primary reduction ratio:
2.073 (85/41)
Final drive: Chain
Secondary reduction ratio: 2.813 (45/16)
Transmission type:
Constant mesh 6-speed
Gear ratio: 1st:
2.583 (31/12)
2nd: 2.000 (32/16)
3rd: 1.667 (30/18)
4th:
1.444 (26/18)
5th: 1.286 (27/21)
U2CXE2E0.book Page 1 Tuesday, June 9, 2015 5:04 PM