S&S Cycle Fuel System Upgrade Kit with Magneti Marelli Style VFI Module and Single Bore Throttle Body - Manual (Page 3)

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OPTIONAL ACCESSORIES
All S&S VFI modules are capable of closed-loop fuel control. If closed loop fuel control is desired, Closed Loop Oxygen Sensor kits are available to
purchase.
The S&S part number for the Closed Loop Oxygen Sensor kit to be used with the VFI module described in this instruction sheet is listed below:
106-2067 – Closed Loop Sensor Kit for use with Magneti Marelli® Style S&S VFI Modules
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INSTALLATION
Single Bore Induction System Installation
Following the installation instructions provided with the Single Bore Induction system, install the manifold, throttle body, and Teardrop air cleaner.
Note the throttle body included with this kit comes with a throttle position sensor installed and set for 0.50 to 0.51 volts at closed throttle. It is not
necessary to remove the throttle position sensor from the old throttle body or to perform the TPS adjustment procedure as noted in the instructions.
The fuel rail included with this kit also includes a 4 bar fuel pressure regulator. This regulator must be used to work with the provided S&S VFI
calibration files.
VFI Module Installation
NOTE: Included in the VFI Module kit are components used to cover the USB port of the VFI module (o-ring, cover, and two screws). After the module is
installed and any required calibration work with the ProTune II software is complete, install these components before it is put into service. These parts are
required to protect the module from the elements.
VFI Module Calibration
The VFI Module included in this Fuel System Upgrade Kit has been pre-programmed with a common base calibration for the kit that was
ordered. A description of these calibrations is given below. For vehicles matching these setups it will not be necessary to connect a PC to the
VFI module to install a calibration. If the vehicle setup is different than this, additional calibrations can be found on the included ProTune II CD.
See the Loading a Calibration section below for information on how to install different calibrations.
Kit PN: 550-0067 for 1995-98 Touring bikes includes a VFI module that has been programmed for running the single bore induction system on
a stock 80” Harley-Davidson® Evolution® engine with S&S 510 cam and slip-on mufflers.
Kit PN: 550-0068 for 1999-2001 Touring bikes includes a VFI module that has been programmed for running the single bore induction system
on a 1550cc (95”) big twin engine with S&S 510 cams and slip-on mufflers.
Installing the VFI Module
1- Follow the VFI Module Installation section of the S&S USB Magneti Marelli® Style VFI Module and ProTune II Software installation
instructions to install the VFI module.
2- If programming of VFI module is not needed installation is complete. You may proceed with installation of the USB port cover, o-ring, and
screws as outlined in the VFI module installation instructions. If programming of VFI module is needed follow the instructions below.
Loading a Calibration
1- Install the ProTune II software following the ProTune II Software Installation section of the VFI Module Instructions.
2- Install USB Drivers following the Installing USB Drivers section of the VFI Module Instructions.
3- Connect to the VFI module.
a- Using standard USB-A to 5-pin mini-B cable, connect the port on the case of the VFI module to a USB port on the PC.
b- Open ProTune II by double-clicking the ProTune II icon on the desktop. The lower-right corner of the ProTune II window contains a
communication status box. When there is no ECM (Electronic Control Module referring to the VFI module) communication this box
will flash between blue and black and alternate between messages that report which ports the Pro Tune II software is searching for
the ECM.
c- Turn the ignition switch of the motorcycle to on and set the run/stop switch to “run”. Do not start the motorcycle at this time.
d- The communication status box in the lower-right corner of ProTune II will illuminate green to show that ProTune II is communicating
with the VFI module. If it does not illuminate green see the Basic Troubleshooting section of the installation instructions for the S&S
USB Magneti Marelli® Style VFI Module and ProTune II Software.