MSD 82921 Installation

MSD Modified Honda Distributor Cap

PN 82901, PN 82902, PN 82921 and PN 82922

Parts Included In This Kit:

1 - Distributor Cap
1 - Coil Wire

WARNING: During installation, disconnect the battery cables. When disconnecting the battery

cables, always remove the Negative cable first and install it last.

Note: The Modified Cap is designed so that you can remove the stock internal coil, and use a higher

output external coil. The stock internal coil MUST be removed before the installation of this
cap. Failure to do so will cause damage
to the MSD cap.

Note: The supplied spark plug style terminals

are required with the PN 82902 and PN
82922 caps.

1 - Parts Bag
1 - Mini-Stripper-Crimper

INSTALLATION:

1. Mark the location of each plug wire, then
remove the wires. Remove the stock distributor
cap, rotor and dust cover.

2. Locate the coil wires and note their color and
location. On the majority of Honda or Acura
engines, the Black/Yellow wire is positive. The
coil negative wire is generally White/Blue, Blue,
Green/Yellow or Green. In some cases, the coil
itself is marked negative (-) and positive (+).

Figure 1 Primary Wiring with the Coil Removed.

1 - Retainer and Screw
(Extreme Caps only)

Note: If you have a question as to the

wires’ polarity, use a volt-meter and
probe each wire with the ignition
key turned to the On position. Coil
positive will show 10-12 volts.

3. Once you determine the polarity of the
coil wires you will need to extend the
wires to reach the MSD coil. Cut the
factory terminals off and solder to a 14
gauge wire. Seal the soldered joint with
shrink sleeve or electrical tape.

4. Depending on the model of distributor
you have, you may need to drill a hole
in the new cap to route the wires out.
In some applications the factory rubber
seal is thick enough to cut and slide the
new wires out.

5. Install the rotor, the new cap and then
the wires. For Extreme model caps, install the wire retainer with the supplied screw.

M S D   •   W W W . M S D P E R F O R M A N C E . C O M   •   ( 9 1 5 )   8 5 7 - 5 2 0 0   •   F A X   ( 9 1 5 )   8 5 7 - 3 3 4 4

Figure 2 Wiring with a Blaster SS Coil.

2 INSTALLATION INSTRUCTIONS

DUAL CRIMP

TERMINAL

STANDARD
TERMINAL

CONDUCTOR
CRIMP TABS

WIRE SLEEVE
CRIMP TABS

STANDARD

DUAL CRIMP

Figure 3 Wiring an MSD SCI Ignition with a Blaster SS Coil.

ASSEMBLING THE COIL WIRE

Once the cap is installed and the coil is wired, you
will need to assemble a coil wire. You will need a
razor blade and a 4-inch vice.

The Mini-Stripper-Crimper is an all in one spark plug
wire stripper and crimp tool. It will work with both
MSD 8.5mm Super Conductor and 8mm Heli-Core
wires to produce a strong, professional crimp.

TERMINALS

MSD offers several different terminals with our
Universal wire sets. There are two terminal styles
used, either a standard style or the Dual Crimp
Terminal (Figure 4). The standard design requires
stripping more of the wire sleeve because the
conductor will be bent under the terminal. The Dual
Crimp has specific crimp tabs for the conductor
which require needle nose pliers.

STRIPPING THE WIRE

1. Once you’ve determined which terminals you are
working with, position the wire in the corresponding
strip guide. There are two holes; one for the 8mm
wire and another for the 8.5mm wire.

2. There are two stripping positions indicated on the
stripping slot, depending on the terminal being
used. Slide the wire to the correct position and
strip the sleeve by holding a razor blade flush with
the strip guide and rotate the wire 360° (Figure

5).

3. Remove the wire and twist the cut end of the sleeve
off in a counterclockwise direction.

Figure 4 Identifying the Different Style Terminals.

Figure 5 Stripping the Sleeve.

M S D   •   W W W . M S D P E R F O R M A N C E . C O M   •   ( 9 1 5 )   8 5 7 - 5 2 0 0   •   F A X   ( 9 1 5 )   8 5 7 - 3 3 4 4