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.

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

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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.
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12
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