2016 YAMAHA SR400 suspension

Safety information
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hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poison-
ing, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.
Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
motorcycle can adversely affect stabili-
ty and handling if the weight distribution
of the motorcycle is changed. To avoid
the possibility of an accident, use ex-
treme caution when adding cargo or
accessories to your motorcycle. Use
extra care when riding a motorcycle
that has added cargo or accessories.
Here, along with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident. When loading within this weight limit,
keep the following in mind:
Cargo and accessory weight
should be kept as low and close to
the motorcycle as possible. Se-
curely pack your heaviest items as
close to the center of the vehicle as
possible and make sure to distrib-
ute the weight as evenly as possi-
ble on both sides of the motorcycle
to minimize imbalance or instabili-
ty.
Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the motorcycle before
riding. Check accessory mounts
and cargo restraints frequently.
Properly adjust the suspension for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy items to the handlebar, front
fork, or front fender. These
items, including such cargo as
sleeping bags, duffel bags, or
tents, can create unstable han-
dling or a slow steering re-
sponse.
This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Maximum load: 150 kg (331 lb)
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Safety information
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14 Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.
Never install accessories or carry
cargo that would impair the perfor-
mance of your motorcycle. Care-
fully inspect the accessory before
using it to make sure that it does
not in any way reduce ground
clearance or cornering clearance,
limit suspension travel, steering
travel or control operation, or ob-
scure lights or reflectors. Accessories fitted to the handle-
bar or the front fork area can cre-
ate instability due to improper
weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
Bulky or large accessories may seriously affect the stability of
the motorcycle due to aerody-
namic effects. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become un-
stable in cross winds. These ac-
cessories may also cause
instability when passing or being
passed by large vehicles.
Certain accessories can dis- place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
tor and may limit control ability,
therefore, such accessories are
not recommended.
Use caution when adding electrical
accessories. If electrical accesso-
ries exceed the capacity of the mo-
torcycle’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your
motorcycle were designed to match the
performance capabilities and to provide
the best combination of handling, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
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Safety information
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appropriate. Refer to page 6-15 for tire
specifications and more information on
replacing your tires.
Transporting the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle.
Remove all loose items from the
motorcycle.
Check that the fuel cock (if
equipped) is in the “OFF” position
and that there are no fuel leaks.
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
Shift the transmission in gear (for
models with a manual transmis-
sion).
Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or parts
that could break). Choose the lo-
cation for the straps carefully so
the straps will not rub against
painted surfaces during transport.
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce excessive-
ly during transport.
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Instrument and control functions
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EAU13962
Seat
To remove the seat
Remove the bolts, and then pull the
seat off.
To install the seat 1. Insert the projections on the front of the seat into the seat holders as
shown.
2. Place the seat in the original posi- tion, and then tighten the bolts.
TIP
Make sure that the seat is properly se-
cured before riding.
EAU14883
Adjusting the shock absorber
assemblies
WARNING
EWA10211
Always adjust both shock absorber
assemblies equally, otherwise poor
handling and loss of stability may
result.
Each shock absorber assembly is
equipped with a spring preload adjust-
ing ring.
NOTICE
ECA10102
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.
Adjust the spring preload as follows.
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring on each shock ab-
sorber assembly in direction (a). To de-
crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring on each shock absorber as-
sembly in direction (b).
Align the appropriate notch in the ad-
justing ring with the position indicator
on the shock absorber.
1. Bolt
1. Seat holder
2. Projection
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1 2
1. Spring preload adjusting ring
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2
3
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5
1
(a)
(b)
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Specifications
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Front tire:
Type: With tube
Size: 90/100-18M/C 54S
Manufacturer/model:
BRIDGESTONE/BT-45F
Rear tire:
Type:With tube
Size:
110/90-18M/C 61S
Manufacturer/model: BRIDGESTONE/BT-45R
Loading:
Maximum load:
150 kg (331 lb)
* (Total weight of rider, passenger, cargo and accessories)
Tire air pressure (measured on cold
tires):
Up to 90 kg (198 lb) load:Front:
175 kPa (1.75 kgf/cm
2, 25 psi)
Rear: 200 kPa (2.00 kgf/cm
2, 29 psi)
90 kg (198 lb) lo ad - maximum load:
Front: 200 kPa (2.00 kgf/cm
2, 29 psi)
Rear: 225 kPa (2.25 kgf/cm
2, 33 psi)
Front wheel:
Wheel type:Spoke wheel
Rim size: 18 x 1.85
Rear wheel:
Wheel type:Spoke wheel
Rim size: 18 x 2.15
Front brake:
Type:Hydraulic disc brake
Specified brake fluid:
DOT 4
Rear brake:
Type:Mechanical leading tr ailing drum brake
Front suspension:
Type:
Telescopic fork
Spring: Coil spring
Shock absorber:
Hydraulic damper
Wheel travel: 150 mm (5.9 in)
Rear suspension:
Type:
Swingarm
Spring: Coil spring
Shock absorber: Hydraulic damper
Wheel travel:
105 mm (4.1 in)
Electrical system:
System voltage:12 V
Ignition system:
TCI
Charging system: AC magneto
Battery:
Model:
GT4B-5
Voltage, capacity: 12 V, 2.5 Ah (10 HR)
Headlight:
Bulb type:
Halogen bulb
Bulb wattage  quantity:
Headlight:
H4, 60.0 W/55.0 W x 1
Brake/tail light:
21.0 W/5.0 W  1
Front turn signal light: 21.0 W  2
Rear turn signal light:
21.0 W  2
Auxiliary light: 4.0 W  1
Meter lighting: 1.7 W  4
Neutral indicator light:
1.7 W  1
High beam indicator light: 1.7 W  1
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