2018 YAMAHA FJR1300A compression ratio

Instrument and control functions
3-39
3
EAU39672
Rear view mirrors
The 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.
EAU54144
A djustin g the front fork
Each front fork leg is equipped with a
spring preload adjusting bolt. The right
fork leg is equipped with a rebound
damping force adjusting knob and
compression damping force adjusting
screw.
NOTICE
ECA23710
To avoi d d amag ing the suspension,
d o not turn an ad juster beyon d the
maximum or minimum settin gs.
WARNING
EWA14671
Always a djust the sprin g preload on
b oth fork le gs equally, otherwise
poor han dlin g an d loss of sta bility
may result.
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
1. Riding position
2. Parking position
2
2
1
2 2
1
1. Spring preload adjusting bolt
(a)(b)
11
(a)(b)
UB88E1E0.book Page 39 Monday, July 10, 2017 2:46 PM

Periodic maintenance an d a djustment
6-36
6
EAU72980
Vehicle lig hts
This model is equipped with full-LED
lighting. There are no user replaceable
bulbs.
If a light does not come on, check the
fuses and then have a Yamaha dealer
check the vehicle.
NOTICE
ECA16581
Do not affix any type of tinte d film or
stickers to the head lig ht lens.
EAU25872
Trou bleshootin g
Although 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.
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Specifications
8-1
8
Dimensions:
Overall length:2230 mm (87.8 in)
Overall width:
750 mm (29.5 in)
Overall height: 1325/1455 mm (52.2/57.3 in)
Seat height: 805/825 mm (31.7/32.5 in)
Wheelbase:
1545 mm (60.8 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius: 3.1 m (10.17 ft)
Wei ght:
Curb weight:
289 kg (637 lb)
Engine:
Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train: DOHC
Cylinder arrangement: Inline
Number of cylinders:
4-cylinder
Displacement: 1298 cm³
Bore × stroke:
79.0 × 66.2 mm (3.11 × 2.61 in)
Compression ratio:
10.8 : 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:3.80 L (4.02 US qt, 3.34 Imp.qt) With oil filter removal:
4.00 L (4.23 US qt, 3.52 Imp.qt)
Final gear oil:
Type:
Yamaha genuine shaft drive gear oil SAE
80W-90 API GL-5
Quantity:
0.20 L (0.21 US qt, 0.18 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): 2.60 L (2.75 US qt, 2.29 Imp.qt)
Air filter:
Air filter element:
Dry element
Fuel:
Recommended fuel:Regular unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity: 25 L (6.6 US gal, 5.5 Imp.gal)
Fuel reserve amount:
5.5 L (1.45 US gal, 1.21 Imp.gal)
Fuel injection:
Throttle body:ID mark: B881 00
Spark plu g(s):
Manufacturer/model:
NGK/CPR8EA-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)
Clutch:
Clutch type:
Wet, multiple-disc
Drivetrain:
Primary reduction ratio:1.563 (75/48)
Final drive:
Shaft
Secondary reduction ratio: 2.693 (34/36 x 21/27 x 33/9)
Transmission type: Constant mesh 6-speed
Gear ratio:
1st: 2.500 (35/14)
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