Dynojet Power Commander FC User manual

13-15 Yamaha YZF-R125 - PCFC - 1IFC22906 www.powercommander.com
Installation Instructions
PLEASE READ ALL DIRECTIONS BEFORE STARTING INSTALLATION
THE IGNITION MUST BE TURNED
OFF BEFORE INSTALLATION!
THE LATEST PCFC SOFTWARE AND MAP
FILES CAN BE DOWNLOADED FROM OUR
WEBSITE AT:
www.powercommander.com
2191 Mendenhall Drive North Las Vegas, NV 89081 [phone] www.powercommander.com
1 Power Commander FC
1 USB Cable
1 Installation Guide
2 Dynojet Decals
2 Velcro strips
1 Alcohol swab
1 Posi-tap
Parts List
2013-2015 Yamaha YZF-R125

IFC22906 www.powercommander.com 13-15 Yamaha YZF-R125 - PCFC - 2
SELECTING THE MAP POSITION
The Dynojet Power Commander Fuel Controller (PCFC) comes loaded with up to ten
maps. Using a #1 Phillips screwdriver, turn the map select dial to toggle between the
loaded maps. Refer to the map position table for the maps included in your PCFC.
USING THE RPM RANGE DIALS
The Low, Mid, and High RPM Dials refer to the RPM range, in thirds, of your vehicle.
Each dial allows +/- 10% fuel adjustment on top of what fuel changes are done in the
map. With the dial facing straight up, there is no additional fuel change.
For example, if your vehicle revs to 6000 RPM:
• The low RPM dial will adjust 0-3000 RPM
• The mid RPM dial will adjust 3001-6500 RPM
• The high RPM dial will adjust 6501-10500 RPM
USING PCFC CONTROL CENTER
Take your tuning to the next level with the PCFC Control Center software.
1 Using your web browser, navigate to www.powercommander.com.
2 Click Enter Race Ready.
3 Click Downloads.
4 Click Access Downloads for Power Commander FC.
5 Click the PCFC software Download button.
6 Open the zip folder.
7 Double-click the install file and follow the on-screen instructions to install the PCFC
Control Center software. The PCFC Control Center software and maps will be
stored in C:\Program Files\PCFC Control Center.
8 Return to the Downloads or Home page where you can enter the make, model, and
year of your bike to check for and download additional maps.
LOADING ADDITIONAL MAPS
1 Connect the USB cable from the computer to the PCFC. Verify the cable is fully
seated in the PCFC.
2 Run the Control Center software by double-clicking the program icon installed on
your desktop or on your start menu.
3 Click Open Map File and select a map file.
4 Click Send Map. You can send the map to any of the ten map positions.
ALTERING MAPS USING SOFTWARE
The values in the map represent a percentage of fuel change over stock. A value of 10 in
the map indicates at that throttle position and RPM range the vehicle will be 10% richer
than stock. If the value is -10, then it would be 10% leaner than stock. You have the
ability to fine tune your fuel curve by altering these values. The Control Center software
allows a value of +250 to -100 in each cell.
USB Port
HIGH RPM Dial
MID RPM Dial
LOW RPM Dial
MAP Select
STATUS Light
Position Note
Position 1
2013-2015 Yamaha R25
Stock exhaust
Stock or aftermarket air filter

IFC22906 www.powercommander.com 13-15 Yamaha YZF-R125 - PCFC - 3
FIG.A
FIG.C
FIG.B
1 Remove the seat, fuel tank, fuel tank side panels.
2 Using the supplied velcro attach the PCFC to the left side of the airbox (Fig. A)
Make sure to clean the surface before attaching.
3 Attach the ground wire of the PCFC to the negative side of the battery (Fig. B)
4 Unplug the stock fuel injector from the wiring harness (Fig. C).
This is a BLACK, 2 pin connector near the throttle body.

IFC22906 www.powercommander.com 13-15 Yamaha YZF-R125 - PCFC - 4
FIG.D
FIG.E
FIG.F
7 Using the supplied Posi-tap attach the GREY wire of
the PCFC to the stock YELLOW wire of the bike’s
Throttle Position Sensor (Fig. F).
8 Reconnect the TPS connector back onto the throttle
body.
9 Reinstall bodywork.
PCV
6 Unplug the stock Throttle Position Sensor connector (Fig. E).
This connector is on the left side of the throttle body. This allows easier access
for step 7.
5 Plug the PCFC in-line of the stock injector and wiring harness (Fig. D)
Stk
Stk
PCV