S&S Cycle IST Ignition System for S&S V-Series Engines with Flywheel Machined for Crank Trigger User Manual

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Hold knock sensor in position by hand only while torquing. Do NOT use pliers. Damage to knock sensor will occur.

NOTE: Red Loctite® is not recommended for fasteners into aluminum.

3. Installation of the MAP Sensor

a. Replace the existing VOES vacuum hose with the one provided. Trim the hose to a length that will locate the MAP Sensor so it does not

interfere with the engine Temperature or Knock sensors, or motor mount hardware. A hose length in the 1 to 2 inch range is acceptable.
If the vacuum fitting in the intake manifold is used for other equipment, the line maybe cut near the manifold, and the supplied tee may
be used. The total line length from the manifold to the sensor should be kept less than 9 inches - shorter if practical.

b. Remove the orange rubber seal at the end of the MAP Sensor with a pair of needle nose pliers.

c. Attach the MAP Sensor to the hose. It is recommended to use wire ties around vacuum hose connections.

4. Installation of the Ignition Coil

a. A dual single-fire coil may be installed in the location where the wasted-spark coil was. It should have front and rear connections which go

to the module and front and rear spark plug wire connections. Other single fire coils may be used by modifying the supplied harness.

b. Do not use the motorcycle’s existing coil harness - a coil harness is provided.

c. Primary coil resistance should be in the range of 0.5 to 3 ohms.

5. Installation of the Crank Position Sensor

a Remove the two screws, cover plate, and gasket from the front of the engine crankcase near the oil filter. See Picture 7, below.

b. Install the Crank Position Sensor. Install the supplied 1⁄4" bolt and torque to 8-10 ft.-lb.

CAUTION

Picture 7