Dynojet Power Commander III USB EX User manual

i431-411EX 2008 Yamaha Roadstar - PCIII USB EX - 1
2008 YAMAHA
ROADSTAR
INSTALLATION INSTRUCTIONS
Dynojet Research • 2191 Mendenhall Drive • North Las Vegas, NV 89081 • [phone]
DOWNLOAD THE POWER COMMANDER SOFTWARE AND LATEST MAPS FROM OUR WEBSITE:
WWW.POWERCOMMANDER.COM
PLEASE READ ALL DIRECTIONS BEFORE STARTING INSTALLATION
PARTS LIST
quantity description
1 power commander EX
1USBcable
1cd-rom
1 installation guide
1poweradapter
2 power commander decal
2dynojetdecal
2 dual lock velcro strip
1 alcohol swab USB port
expansion port

i431-411EX
2008 Yamaha Roadstar - PCIII USB EX - 2
The ignition must be turned OFF before
installation.
1 Remove the seat.
2 Remove the fuel tank.
3 Remove the right hand side air box as shown
in Figure A.
4 Remove the left hand side cover.
5 Lay the PCIII USB EX under the left hand side
cover next to the fuse box.
6 Route the PCIII USB EX wiring harness behind
the left hand frame tube and follow the main
wiring harness towards the front of the bike as
shown in Figure B.
Use the stock wire tie to secure the
PCIII USB EX wiring harness in place.
7 Locate the clear 6-pin connector under the
main frame spar as shown in Figure C.
Unplug this connector.
Figure AFigure BFigure C
air box
PCIII USB EX
wiring harness
unplug connector

i431-411EX
2008 Yamaha Roadstar - PCIII USB EX - 3
8 Attach the connectors from the PCIII USB EX
harness to the throttle bodies and the stock
wiring harness connectors as shown in
Figure D.
9 Locate the stock Throttle Position Sensor (TPS)
connector as shown in Figure E.
The TPS connector is located on the right hand
side of the bike to the rear of the throttle body.
10 Unplug the TPS connector.
11 Attach the connectors from the PCIII USB EX
harness to the stock TPS and stock wiring
harness as shown in Figure F.
Figure DFigure EFigure F
PCIII USB EX
connectors
stock
connectors
unplug connector
stock connector
PCIII USB EX
connectors

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2008 Yamaha Roadstar - PCIII USB EX - 4
12 Locate the white 2-pin connector taped to the
main wiring harness.
This connector is located under the left hand
side cover.
13 Remove the tape securing this connector to
the main wiring harness and remove the cap as
shown in Figure G.
14 Attach the red wire from the PCIII USB EX
harness to the stock wiring harness as shown
in Figure H.
15 Attach the ground wire from the PCIII USB EX
to the negative side of the battery as shown in
Figure I.
Figure GFigure HFigure I
remove cap
PCIII USB EX
connector
ground wire from
PCIII USB EX

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2008 Yamaha Roadstar - PCIII USB EX - 5
16 Using the supplied velcro, secure the
PCIII USB EX to the fuse box under the right
hand side cover as shown in Figure J. Make
sure to clean both surfaces with the alcohol
swab before attaching.
17 Reinstall the side cover, fuel tank, and air box.
18 Insert the cd provided into your computer’s
cd-rom drive.
19 Follow the on-screen instructions to install the
PCIII USB EX software.
Visit www.powercommander.com to download
software tutorials and the latest maps.
Figure J