Msd 7423 Rotor for Pro Cap, fits PN 7455 MAG Installat User Manual download pdf

The reason for this modiﬁcation

is because voltage will travel

to and from the sharpest point

of the rotor tip. By rounding

the leading edge of the Tip,

the voltage will jump from the

sharp point (trailing edge) of

the tip which will be closer to

the spark plug wire terminal

when the timing is retarded.

This will produce proper spark

distribution even when the timing

is retarded (which alters the rotor

phasing).

The Figures show the Rotor Tip

installation.

Pro Cap Rotor Tip

PN 7411

A new, modiﬁed Rotor Tip is supplied with the Pro Cap Kit, PN 7455, and the Pro Cap Rotor, PN 7423.

This Rotor Tip must be used when the ignition timing of the Pro Mag is being retarded.

The modiﬁed Rotor Tip has a

90° corner on one side and a

rounded edge on the opposite

side. Installation of the Tip

depends on the rotation of the

Pro Mag. The rounded edge

of the rotor must point in the

direction of the mag's rotation

(the rounded edge is always the

leading side). Note that there is

also an arrow designating the

rotation stamped on both sides

of the new Tip.

CCW

ROTATION

CCW

ROTATION

M S D I G N I T I O N • w ww . m s d i g n i t i o n . c o m • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • FA X ( 9 1 5 ) 8 5 7 -3 3 4 4

FRM28561 Revised 04/07 Printed in U.S.A.

Pro Cap Rotor Tip 1

Summary of Contents

Page 1 - Pro Cap Rotor Tip

The reason for this modiﬁcation is because voltage will travel to and from the sharpest point of the rotor tip. By rounding the leading edg

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Msd 7423 Rotor for Pro Cap, fits PN 7455 MAG Installat User Manual

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