compression ratio YAMAHA YZF-R1 2015 Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU67130
Supporting t he motorcycleSince this model is not equipped with a
centerstand, use a motorcycle stand
(or place a jack under each side of the
swingarm) when servicing the chain or
rear wheel. When servicing the front
wheel, a motorcycle stand is also nec-
essary. Check that the motorcycle is in
a stable and level position before start-
ing any maintenance.
EAU25872
TroubleshootingAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing 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 inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15142
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water heaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
2CR-9-E0_1.book 36 ページ ２０１５年１月５日　月曜日　午前１１時５４分

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SPECIFICATIONS
EAU5091U
Dimensions:Overall length: 2055 mm (80.9 in)
Overall width: 690 mm (27.2 in)
Overall height: 1150 mm (45.3 in)
Seat height:
YZF-R1 855 mm (33.7 in)
YZF-R1M 860 mm (33.9 in)
Wheelbase:
1405 mm (55.3 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius: 3300 mm (129.9 in)Weight:Curb weight:YZF-R1 199 kg (439 lb)
YZF-R1M 200 kg (441 lb)Engine:Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Inline 4-cylinder
Displacement: 998 cm
3
Bore  stroke:
79.0  50.9 mm (3.11  2.00 in)
Compression ratio:
13.0 : 1
Starting system: Electric starter Lubrication system:
Wet sump
Engine oil:Recommended brand:YAMALUBE
Type: Full synthetic SAE 10W-40 or 15W-50
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine oil quantity:
Without oil filter cartridge replacement: 3.90 L (4.12 US qt, 3.43 Imp.qt)
With oil filter cartridge replacement:
4.10 L (4.33 US qt, 3.61 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 elementFuel:Recommended fuel:
Premium unleaded gasoline (Gasohol
(E10) acceptable)
Fuel tank capacity:
17 L (4.49 US gal, 3.74 Imp.gal)
Fuel reserve amount: 3.0 L (0.79 US gal, 0.66 Imp.gal)
Fuel injection:Throttle body:
ID mark: 2CR1 00Spark plug(s):Manufacturer/model:NGK/LMAR9E-J
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:Wet, multiple-discTransmission:Primary reduction ratio:
1.634 (67/41)
Final drive: Chain
Secondary reduction ratio: 2.563 (41/16)
Transmission type:
Constant mesh 6-speed
Operation: Left foot operation
Gear ratio: 1st: 2.600 (39/15)
2nd: 2.176 (37/17)
3rd:
1.842 (35/19)
4th: 1.579 (30/19)
5th: 1.381 (29/21)
2CR-9-E0_1.book 1 ページ ２０１５年１月５日　月曜日　午前１１時５４分