S&S Cycle IST Ignition System for S&S V-Series Engines with Flywheel Machined for Crank Trigger - Manual (Page 8)

f. Use the provided wire ties to secure this portion of the harness to the motorcycle frame or a portion of the existing harness. Do not allow
the harness to touch cylinder or head fins which get very hot.
g. Connect the Head Temperature Connector (c) See Picture 8, Knock Sensor Connector (d) (See Picture 8, previous page) and MAP Sensor
(e) (See Picture 8) to the corresponding sensors.
NOTE: If the tank is removed or raised, temporarily replace it to insure clearance for the Engine Temperature, MAP, and Knock Sensor portions of the
harness. Reroute any wires that may be damaged by installing the tank.
h. Route the coil harness segment (f) (See Picture 8) on the S&S harness to the coil. The table shows the wire color codes that should be
matched to the ignition coil. Install each ring terminal under the corresponding screw. Do not allow the screws or ring terminals to touch
each other or any other metal. See Picture 9, below left.
i. Route the crank position sensor harness segment (g) (See Picture 8) on the S&S harness to the Crank Position Sensor and attach the
connector. Avoid routing this wire segment near coils or spark plug wires.
j. Locate Data Link harness segment (h) (See Picture 8) on the S&S harness so that it may be easily accessed by a scantool to check any fault
codes that may occur. See Picture 10, below right.
k. Permanently reinstall tank, reconnect battery (positive cable first) and any other portions of the motorcycle that have been removed or
disconnected.
7. Motorcycles with a 7-pin ignition connector instead of an 8-pin connector.
Some Harley-Davidson® motorcycles manufactured between the years 1991 and 1994 had a 7-pin connector in place of the 8-pin connector.
A 7-to-8-pin adapter is available through aftermarket sources such as Drag Specialties and Custom Chrome. It is a universal adapter that
allows many different ignition systems (including the S&S IST ignition) to work on motorcycles with a 7-pin connector. If the IST installation
is on a motorcycle with a 7-pin connector, an adapter can be purchased separately.
NOTE: If using an 7-to-8-pin adapter plug, the IST power harness adapter is not used.
8. IST power harness adapter
The IST wiring harness adapter allows installation of the IST ignition on engines in custom, carbureted applications.
NOTES:
•
If the IST Ignition will be installed on an engine in a motorcycle with an existing 8-pin ignition connector, the IST main harness connects to it, and the
power harness is not used.
•
If the motorcycle has an existing connector for an ignition rotor sender, it is not used. V-Series engines with flywheels machined for ignition pick-up use
crank position sender instead of nosecone mounted ignition pick-up.
8
Picture 10 Picture 9