Ultima SHOVELHEAD ENGINES Spezifikationen PDF herunterladen (Seite 16)

Example for settings on Ultima SF Hi-Perf. & Crane HI4 Ignitions

1. Follow the Manufacturers instruction to set the Static timing and understand the

instructions. Make sure you have the engine on TDC (TF on the Flywheel) on the Front

Cylinder on the compression stroke before you begin. The ignition will be nearly vertical

— slightly to the 1 o’clock position if you got it right.

2. Set the ignition to the OEM with VOES mode but do not install the VOES switch. Instead

tape up the wire — Do NOT Ground this wire on the HI4 System or Ultima ignition system.

3. Put the ignition in Kick Start Mode as they will fire on the first revolution and typically

start much easier this way.

4. Set the Rev Limit to Minimum for Break-in.

5. Set the Rear Cylinder Advance to “O”.

6. Look in the Manufacturers instructions at the Curves produced by the ignition when in the

OEM with VOES mode. Look at the Low vacuum

set of curve as this is what you will get when no VOES switch is present. The instructions

show a MAX advance curve and a MIN advance curve for this scenario. When you turn the

Spark Advance dial on the face of the ignition to MIN you will get the curves shown

as MIN and as you turn the dial towards MAX you will get something linear between MIN

and MAX. As you can see the MIN is around 26 degrees and the MAX is about 30 Degrees

full advanced.

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Ultima SHOVELHEAD ENGINES Spezifikationen Seite 16