Yamaha YZ Power Tuner User manual

33D-859C2-10
OWNER’S MANUAL
MANUEL DU PROPRIÉTAIRE
BEDIENUNGSANLEITUNG
USO E MANUTENZIONE
MANUAL DEL PROPIETARIO
Lire attentivement ce manuel avant d’utiliser le YZ Power Tuner.
Read this manual carefully before using this YZ Power Tuner.
Lesen Sie dieses Handbuch sorgfältig durch, bevor Sie den YZ Power Tuner verwenden.
Prima di utilizzare questo Power Tuner YZ, leggere attentamente il presente manuale.
Lea atentamente este manual antes de utilizar el YZ Power Tuner.

A5-tate_Blank.fm Page 1 Friday, May 16, 2003 9:00 AM

33D-859C2-10-E0
OWNER’S MANUAL
Read this manual carefully before using this YZ Power Tuner.

A5-tate_Blank.fm Page 1 Friday, May 16, 2003 9:00 AM

Introduction
Thank you for purchasing the Power Tuner.
Warranty information
This unit, like competition models, is not covered by a warranty after purchase. In addition, any
malfunctions or other problems caused by the use of this unit are also not covered by a war-
ranty.
Important manual information
●For information not included in this manual, refer to the owner’s service manual for the vehi-
cle.
●Particularly important information is distinguished in this manual by the following notations.
●Designs and specifications are subject to change without notice.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
A WARNING indicates a hazardous situation which, if not avoid-
ed, could result in death or serious injury.
A NOTICE indicates special precautions that must be taken to
avoid damage to the Power Tuner or other property.
TIP A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICE
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Contents
Handling precautions........................ 1
Overview of functions....................... 2
Names of parts .................................. 3
Getting started................................... 5
Installing and removing the
batteries .........................................5
Turning the Power Tuner on or off ... 6
Connecting the Power Tuner to a
vehicle (ECU) ................................. 6
To connect the Power Tuner.............. 6
To disconnect the Power Tuner ......... 7
Engine control settings
(SETTING function) ........................... 8
Creating and editing setting data ..... 8
Selecting the setting data to edit ........ 8
Adjusting the fuel injection
amount ........................................... 10
Adjusting the ignition timing ............. 13
Saving setting data........................... 16
Sending and downloading setting
data .............................................. 18
Sending setting data to the ECU...... 18
Downloading setting data from
the ECU ......................................... 20
Error screen information................... 21
Checking the engine condition
(MONITOR function)........................ 22
Checking the engine condition
while the engine is running or
stopped ........................................ 22
Changing the units ........................... 23
Checking the engine running time
and error codes from the
self-diagnosis system................... 24
Checking the engine running time.... 24
Checking the error codes ................. 25
Error screen information................. 26
Troubleshooting.............................. 27
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1
Handling precautions
●This unit has been designed to make
settings on standard vehicles that have
not been modified. If the engine specifi-
cations (for example, compression ratio
or muffler) have been changed, the set-
tings may not match the current perfor-
mance of the vehicle.
●Use only AA rechargeable Ni-MH (nick-
el-metal hydride) batteries (2 batteries)
to power this unit. For information on
handling the batteries, refer to the oper-
ation manual supplied with the batteries.
●Do not start the engine and ride the vehi-
cle while the unit is connected and
placed on the vehicle. Otherwise, the
unit may be damaged.
●Never start the engine in an enclosed ar-
ea. Exhaust gas is poisonous.
●Keep open flames, sparks, or any other
source of fire away from the work area.
●Keep the unit away from hot parts (en-
gine, muffler, and brakes) and rotating
parts (sprockets, tires, and drive chain)
of the vehicle.
●Do not use or store the unit in hot loca-
tions, such as near flames, in direct sun-
light, or in a vehicle in hot weather.
●Do not get the unit wet.
●Do not drop the unit, subject it to strong
shocks, or throw it.
●Do not disassemble or modify the unit.
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2
Overview of functions
The Power Tuner is equipped with the following functions, which can be used when the unit is
connected to the ECU (engine control unit) of a vehicle.
●The SETTING function can be used to change the engine control settings to suit the riding
course, road surface conditions, and rider skills.
●The MONITOR function can be used to display the signals from various sensors as values
in order to check the condition of the engine.
SETTING function
The settings for fuel injection amount and ignition timing of the engine can be adjusted using
the unit. The settings can then be saved in the unit as setting data. By sending the saved setting
data to the ECU of a vehicle, the engine control settings can be changed easily.
In addition, the adjustment values currently set in an ECU can be downloaded to the unit.
MONITOR function
The signals (engine speed, intake air temperature, water temperature, atmospheric pressure,
and throttle position) from various sensors on a vehicle can be checked using values.
In addition, the engine running time and error codes from the self-diagnosis system can be dis-
played.
ECU
SETTING
MONITOR
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3
Names of parts
Make sure that the following items have been supplied.
●Power Tuner
●Coupler cap
●Owner’s manual (this manual)
1. Communication cable
2. Communication coupler
3. Coupler cap*
4. Display
5. “/ / / ”button
(navigation button)
6. Indicator light
7. Power button
8. Set button
9. Battery compartment cover screw*
10. Battery compartment cover*
11. Cable holding groove
12. Strap eyelet
* If you lose the coupler cap (33D-859C4-00), battery compartment cover (33D-859C3-00), or battery
compartment cover screws (33D-859C5-00), contact a Yamaha dealer for replacement parts.
123
4
5
6
7
8
10
11
12
9
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Names of parts
4
Communication cable
Supplies power to the ECU, and sends and
receives communication signals.
Communication coupler
Connects to the wire harness of a vehicle.
Coupler cap
Prevents dust and other debris or humidity
from entering the coupler when the unit is
stored.
NOTICE
When the communication coupler is not
connected to the wire harness of a vehicle,
always install the cap onto the coupler.
Display
Displays various information.
“ / / / ” button (navigation but-
ton)
Used to select items.
Indicator light
Comes on in different colors to indicate the
operation status of the unit.
●Orange: Power is turned on
●Red: Power is being turned on or off, a
communication error has oc-
curred, data is being overwritten,
and so on
Set button
Used to set or confirm an operation.
Power button
Used to turn the power on or off.
Battery compartment cover screws
Used to secure the battery compartment cov-
er.
Battery compartment cover
Cover that is removed when installing or re-
moving the batteries.
Cable holding groove
Used to secure the communication cable after
it has been wrapped around the unit.
Strap eyelet
Used to attach a commercially available strap.
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5
Getting started
Installing and removing the
batteries
NOTICE
●When installing or removing the batter-
ies, select a location where dust and liq-
uids will not enter the unit.
●Before removing the batteries, be sure
to turn off the unit. (See “Turning the
Power Tuner on or off”on page 6.)
The batteries are sold separately. Be sure to
have batteries before using the unit.
Use only AA rechargeable Ni-MH (nickel-met-
al hydride) batteries for the unit.
TIP
●Fully charged AA rechargeable Ni-MH
(nickel-metal hydride) batteries can supply
enough power to the unit for approximately
2 hours* of continuous operation.
If you expect to use the unit for more than 2
hours, you should have spare batteries.
●The operation time using alkaline batteries
will be shorter. In addition, operation using
alkaline batteries is not guaranteed.
●Do not use manganese batteries.
●If the unit will not be used for a long time, re-
move the batteries from the unit to prevent
them from discharging and to prevent dam-
age to the unit from leaking battery fluid.
* The length of time for the continuous operation
will vary depending on the operating
environment.
Installing and removing the batteries
1. Remove the battery compartment cover
screws using a screwdriver, and then,
while pushing the projection on the cover
in the direction of the arrow, remove the
cover as shown.
1. Battery compartment cover screw
2. Battery compartment cover
2. Remove or install 2 batteries.
NOTICE: Be sure to install the batter-
ies with the positive (+) and negative
(–) terminals aligned correctly.
1. Battery
1
1
2
1
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Getting started
6
3. Install the battery compartment cover as
shown, and then install and tighten the
battery compartment cover screws.
1. Battery compartment cover
2. Battery compartment cover screw
Turning the Power Tuner on or
off
To turn the unit on or off, push and hold the
power button for approximately 2 seconds.
1. Power button
2. Indicator light
TIP
●The indicator light comes on when the pow-
er is turned on and goes off when the power
is turned off.
●If the power is turned on and there is no op-
eration or communication for 10 minutes,
the unit will automatically turn off.
Connecting the Power Tuner to
a vehicle (ECU)
TIP
●For information on the connection point for
the Power Tuner, refer to the owner’s ser-
vice manual for the vehicle.
●Stop the engine before connecting or dis-
connecting the Power Tuner.
To connect the Power Tuner
1. Turn off the unit. (See “Turning the Pow-
er Tuner on or off”on page 6.)
2. Remove the coupler cap from the com-
munication coupler.
1. Communication coupler
2. Coupler cap
3. Remove the coupler cap from the wire
harness coupler on the vehicle where
the Power Tuner will be connected.
4. Connect the communication coupler to
the wire harness coupler.
12
1
2
21
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Getting started
7
TIP
●Do not connect the communication coupler
while the unit is turned on. Otherwise, the
unit may not operate properly.
●When connecting the unit, make sure that
dust and liquids do not enter the unit. If dust
or liquids enter the unit, the unit may not be
able to communicate correctly.
To disconnect the Power Tuner
1. Turn off the unit. (See “Turning the Pow-
er Tuner on or off”on page 6.)
2. Disconnect the communication coupler
from the wire harness coupler.
TIP
Do not disconnect the communication coupler
while the unit is turned on. Otherwise, the unit
may not operate properly.
3. Install the coupler cap onto the wire har-
ness coupler on the vehicle where the
Power Tuner was connected.
4. Install the coupler cap onto the commu-
nication coupler.
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8
Engine control settings (SETTING function)
Creating and editing setting
data
Separate setting data can be created for vari-
ous operating conditions, such as the riding
course, road surface conditions, and rider
skills.
Up to 9 separate setting data (MAP01–
MAP09) can be created.
TIP
As a precautionary measure, it is recom-
mended to keep a written record of the setting
data as well.
Selecting the setting data to edit
1. Turn on the unit. (See “Turning the Pow-
er Tuner on or off”on page 6.)
The INITIAL screen will be displayed.
2. Select [SETTING] using the “/ ”
button, and then push the set button.
The SETTING screen will be displayed.
1. [BACK] tab
TIP
To return to the INITIAL screen, select the
[BACK] tab using the “/ ”button, and
then push the set button.
3. Select [EDIT] using the “/ ”button,
and then push the set button.
The EDIT screen will be displayed.
1. MAP number
2. FI adjustment value display
3. IG adjustment value display
4. [SLCT] tab
5. [LOAD] tab
6. [SAVE] tab
7. [BACK] tab
1
4
1
2
5 6 7
3
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Engine control settings (SETTING function)
9
TIP
The MAP number of the last saved setting
data will be displayed in the EDIT screen.
The following items are displayed in the
EDIT screen.
MAP number
Displays the number of the selected set-
ting data.
FI adjustment value display
Displays the adjustment values for the
fuel injection amount. (See “Adjusting
the fuel injection amount”on page 10.)
IG adjustment value display
Displays the adjustment values for the
ignition timing. (See “Adjusting the igni-
tion timing”on page 13.)
[SLCT] tab
Selects the setting data to edit. (See step
4.)
[LOAD] tab
Downloads the adjustment values cur-
rently set in the ECU. (See “Download-
ing setting data from the ECU”on page
20.)
[SAVE] tab
Saves the edited setting data. (See
“Saving setting data”on page 16.)
[BACK] tab
Switches to the SETTING screen.
4. Select the [SLCT] tab using the “/
”button, and then push the set but-
ton.
The SLCT screen will be displayed.
1. [CANCEL] tab
TIP
●To return to the EDIT screen, select the
[CANCEL] tab using the “/ ”button,
and then push the set button.
●If you select a MAP number before the cur-
rent setting data is saved, the discard set-
ting confirmation screen will be displayed
and the indicator light will become red.
To discard any changes to the settings and
proceed with selecting another MAP num-
ber, select [OK] using the “/ ”button,
and then push the set button.
If you do not want to select another MAP
number, select [CANCEL], and then push
the set button.
1
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Engine control settings (SETTING function)
10
1. Indicator light
5. Select the MAP number that you want to
edit using the “/ / / ”but-
ton, and then push the set button.
The EDIT screen for the selected MAP
number will be displayed.
Adjusting the fuel injection amount
The fuel injection amount can be adjusted for
specific areas according to the engine speed
and throttle position.
1. Select the [FI] adjustment value display
on the EDIT screen using the “/ /
/ ”button.
The values in the FI adjustment value
display will be displayed as white num-
bers on a black background.
1. FI adjustment value display
2. Push the set button.
The FI screen will be displayed.
1. Fuel injection amount MAP display
2. [SLCT All] tab
3. [CLR All] tab
4. [BACK] tab
The following items are displayed in the
FI screen.
Fuel injection amount MAP display
Displays the adjustment value for each
area.
[SLCT All] tab
Selects the adjustment values in all of
the areas to be increased or decreased
together.
[CLR All] tab
Selects the adjustment values in all of
the areas to be reset to 0.
[BACK] tab
Switches to the EDIT screen.
1
1
2
1
3 4
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Engine control settings (SETTING function)
11
3. Select the area that you want to adjust
using the “/ / / ”button,
and then push the set button.
The value in the selected area will flash
2 times.
4. Change the adjustment value using the
“/ ”button.
The adjustment range for each area is
from –7 to +7.
For the engine speed and throttle posi-
tion values of each area, refer to the fol-
lowing illustrations.
Engine speed
1. Low engine speed
2. Medium engine speed
3. High engine speed
Throttle position
1. Small opening angle
2. Medium opening angle
3. Large opening angle
TIP
●To increase the fuel injection amount,
change the adjustment value to a positive
(+) value. To decrease the fuel injection
amount, change the adjustment value to a
negative (–) value.
●The difference between the adjustment val-
ues of adjacent areas must not be exces-
sive. The difference between the
adjustment values of adjacent areas should
be within ±3.
●The settings will not be reflected in the en-
gine idling speed range (approximately
3000 rpm and at a throttle position of 2 de-
grees or less).
●The engine speed and throttle position for
each area, as well as the increases and de-
creases to the fuel injection amount accord-
ing to the adjustment values, vary
according to the model.
Example: 2010 YZ450F
●Engine speed
Low engine speed : 4000 rpm
Medium engine speed : 6500 rpm
High engine speed : 9000 rpm
1 2 3
1
2
3
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Engine control settings (SETTING function)
12
●Throttle position
Small opening angle : 10 degrees
Medium opening angle : 30 degrees
Large opening angle : 60 degrees
The fuel injection amount increases ap-
proximately 3% for each +1 change to the
adjustment value.
5. Push the set button.
The adjustment value will flash 2 times,
and then the value will be set.
6. Repeat steps 3–5 for each area that you
want to adjust.
To increase or decrease the adjustment val-
ues in all of the areas together
1. Select the [SLCT All] tab using the “/
”button, and then push the set but-
ton.
The adjustment values in all of the areas
will be selected.
2. Change the adjustment values using the
“/ ”button.
All of the adjustment values will be in-
creased or decreased together.
3. Push the set button.
The adjustment values in all of the areas
will flash 2 times, and then the values will
be set.
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Engine control settings (SETTING function)
13
To reset the adjustment values in all of the ar-
eas together
1. Select the [CLR All] tab using the “/
/ / ”button, and then push the
set button.
The reset confirmation screen will be
displayed and the indicator light will be-
come red.
1. Indicator light
TIP
If you do not want to reset the values, select
[CANCEL], and then push the set button.
2. Select [OK] using the “/ ”button,
and then push the set button.
All of the adjustment values will be reset.
Adjusting the ignition timing
The ignition timing can be adjusted for specif-
ic areas according to the engine speed and
throttle position.
1. Select the [IG] adjustment value display
on the EDIT screen using the “/ /
/ ”button.
The values in the IG adjustment value
display will be displayed as white num-
bers on a black background.
1. IG adjustment value display
2. Push the set button.
The IG screen will be displayed.
1. Ignition timing MAP display
2. [SLCT All] tab
3. [CLR All] tab
4. [BACK] tab
The following items are displayed in the
IG screen.
1
1
2
1
3 4
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