2001 YAMAHA TDM 850 ECU

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU01726
Seat To remove the seat
1. Insert the key into the seat lock,
and then turn it clockwise.
2. 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. Push the rear of the seat down to
lock it in place.
3. Remove the key.
NOTE:@ Make sure that the seat is properly se-
cured before riding. @
EAU00263*
Helmet holder The helmet holder is located under the
seat.
To secure a helmet to the helmet
holder
1. Remove the seat.
2. Attach the helmet to the helmet
holder, and then securely install
the seat.
1. Seat lock
2. Unlock.
1. Projection (´ 2)
2. Seat holder (´ 2)
1. Helmet holder
E_4tx.book Page 11 Wednesday, October 4, 2000 4:28 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
EW000030
WARNING
@ Never ride with a helmet attached to
the helmet holder, since the helmet
may hit objects, causing loss of
control and possibly an accident. @To release the helmet from the hel-
met holder
Remove the seat, remove the helmet
from the helmet holder, and then install
the seat.
EAU01688
Storage compartment This storage compartment is designed
to hold a genuine Yamaha U-LOCK.
(Other locks may not fit.) When placing
a U-LOCK in the storage compartment,
securely fasten it with the straps. When
the U-LOCK is not in the storage com-
partment, be sure to secure the straps
to prevent losing them.When storing the owner’s manual or
other documents in the storage com-
partment, be sure to wrap them in a
plastic bag so that they will not get wet.
When washing the motorcycle, be
careful not to let any water enter the
storage compartment. 1. U-LOCK (optional)
2. Strap
1. U-LOCK (optional)
2. Strap (´ 2)
E_4tx.book Page 12 Wednesday, October 4, 2000 4:28 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
CE-01E
CE-07EEWA00012
WARNING
_ Because loading has an enormous
impact on the handling, braking, per-
formance and safety characteristics
of your motorcycle, you should keep
the following precautions in mind. l
NEVER OVERLOAD THE
MOTORCYCLE! Operation of an
overloaded motorcycle may re-
sult in tire damage, loss of con-
trol, or severe injury. Make sure
that the total weight of rider, pas-
senger, cargo, and accessories
does not exceed the specified
maximum load for the vehicle.
l
Do not carry along loosely
packed items, which can shift
during a ride.
l
Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.
l
Adjust the suspension and tire
air pressure with regard to the
load.
l
Check the tire condition and air
pressure before each ride.
_
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.CE-08ENOTE:_ The tire tread depth limits may differ
from country to country. Always comply
with the local regulations. _
Tire air pressure
(measured on cold tires)
Load* Front Rear
Up to 90 kg225 kPa
(2.25 kg/cm
2,
2.25 bar)275 kPa
(2.75 kg/cm
2,
2.75 bar)
90 kg–maximum225 kPa
(2.25 kg/cm
2,
2.25 bar)275 kPa
(2.75 kg/cm
2,
2.75 bar)
High-speed riding225 kPa
(2.25 kg/cm
2,
2.25 bar)275 kPa
(2.75 kg/cm
2,
2.75 bar)
Maximum load* 203 kg
* Total weight of rider, passenger, cargo and
accessories
1. Tire sidewall
a. Tire tread depthMinimum tire tread depth
(front and rear)1.6 mm
E_4tx.book Page 20 Wednesday, October 4, 2000 4:28 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
6
EW000079
WARNING
_ l
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
motorcycle with excessively
worn tires decreases riding sta-
bility and can lead to loss of
control.
l
The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
_
Tire information
This motorcycle is equipped with cast
wheels and tubeless tires with valves.
EW000080
WARNING
_ l
The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motor-
cycle cannot be guaranteed.
l
After extensive tests, only the
tires listed below have been ap-
proved for this model by
Yamaha Motor Co., Ltd.
l
Always make sure that the valve
caps are securely installed to
prevent air pressure leakage.
l
Use only the tire valves and
valve cores listed below to
avoid tire deflation during a
high-speed ride.
_
1. Tire air valve
2. Valve core
3. Valve cap with seal
E_4tx.book Page 21 Wednesday, October 4, 2000 4:28 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6
EAU00790
Lubricating the rear
suspension The pivoting points of the rear suspen-
sion must be lubricated at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU02939
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
EW000115
WARNING
@ Securely support the motorcycle so
that there is no danger of it falling
over. @Check the inner tubes for scratches,
damage and excessive oil leakage.To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
EC000098
CAUTION:@ If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it. @
Recommended lubricant:
Molybdenum disulfide grease
E_4tx.book Page 32 Wednesday, October 4, 2000 4:28 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU00794
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
EW000115
WARNING
@ Securely support the motorcycle so
that there is no danger of it falling
over. @
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
EAU01144
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
E_4tx.book Page 33 Wednesday, October 4, 2000 4:28 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6 3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU03794
Replacing a headlight bulb This motorcycle is equipped with
quartz bulb headlights. If a headlight
bulb burns out, replace it as follows.
1. Remove the headlight bulb cover,
and then disconnect the headlight
couplers.2. Unhook the headlight bulb holder,
and then remove the defective
bulb.
EW000119
WARNING
_ Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooled
down. _3. Place a new bulb into position, and
then secure it with the bulb holder.
1. Headlight bulb cover
1. Headlight coupler (´ 2)
2. Headlight bulb holder
E_4tx.book Page 36 Wednesday, October 4, 2000 4:28 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
6
EAU01579
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU03498*
Front wheel To remove the front wheel
EW000122
WARNING
@ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so that there is no danger
of it falling over.
@1. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts.
2. Lift the front wheel off the ground
according to the procedure.1. Wheel axle
2. Front wheel axle pinch bolt
E_4tx.book Page 39 Wednesday, October 4, 2000 4:28 PM