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554: 产品描述HARLEY-DAVIDSON; 文件大小147KB，共4页; 制造商Mallory; 官网地址https://www.msdperformance.com/brands/mallory/

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554概述

HARLEY-DAVIDSON

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FORM 1306 (REV. B) 05/01

INSTALLATION INSTRUCTIONS

UNILITE

CONVERSION FOR

HARLEY-DAVIDSON

Part No. 554

APPLICATIONS:

1970-78 Big Twin

All 1979-Later Big Twin models which have been

converted to mechanical advance and points

NOTES

The Mallory UNILITE

Conversion for Harley Davidson is a dual 9)

fire system.

Install the two Mallory standoffs. Place Loctite on the threads and

torque to 16 in.lb. Do not use any washers with the standoffs.

Any coil or combination of coils with a total primary resistance of 10) Start the three wires of the Mallory UNILITE

Module through the

hole in the nose cone housing. (The module goes in towards the

at least 2.0 ohms may be used. The use of coil with 2.0-3.0 ohms

advance assembly with the flat plate outward). Pull on the three

is recommended for racing applications to obtain maximum spark

wires to remove any slack and prevent the wires from rubbing on

energy. A 3.0-4.0 ohm coil is recommended for street use to keep

the shutter wheel.

the UNILITE Module and the coil cool for maximum life. Coils

from 4.0-5.0 ohms can be used but may reduce performance, even

11) Rotate the UNILITE

plate assembly until the slots in the plate are

in street applications.

in the same position as the point plate was. This should make the

timing close enough to start the engine. Slide the two Mallory 8-32

3) Check that the charging system is producing no more than 16

sleeve nuts (supplied) through the UNILITE

plate and onto the

volts.

male threads of the Mallory standoffs. Tighten the sleeve nuts just

Do not

use solid metal core spark plug wires. Use spiral-core

enough to prevent the plate from moving.

wires or carbon core. Spiral-core wires are preferable for racing

14) Route the wires from the UNILITE

Module to the ignition coil,

and performance applications.

carefully avoiding the exhaust system. Connect the red wire to the

INSTALLATION

(See Figures 1, 2, 3, and 4)

positive (+) terminal (12 volts) on the coil. Connect the green wire

1) Turn ignition switch to the OFF position. Disconnect the ground

to the negative () terminal on the coil (where the point wire was

cable from the battery.

connected). Connect the brown wire to ground. The best place for

the brown wire is the negative () post on the battery, however,

2) Disconnect the wire at the coil which runs down to the points.

any part of the frame or engine which is grounded to the battery

Remove the point cover plate.

will work.

3) Note the position of the slots in the point plate. When the Mallory

WARNING!

UNILITE

plate is installed, use the position of the slots to approxi-

Before re-connecting the battery cable, recheck all 3 of the wires from

mate the timing.

the UNILITE

Module. If the wires are connected incorrectly, the mod-

4) Remove the wire to the points. Remove the O.E. standoffs and ule will be destroyed when the ignition is placed in the ON position.

washers. Remove the point plate assembly.

15) Extend a small screwdriver through the 1/2" hole in the UNILITE

5) Remove the O.E. cam sleeve from the advance assembly. Place

plate and carefully rotate the shutter wheel to make sure that the

a small amount of oil on the advance shaft which supported the

advance is not bound up. The wheel should rotate about 10 de-

cam sleeve.

grees counter-clockwise and snap back when released. If the ad-

vance does not rotate freely, remove the UNILITE

plate and find

6) Slide the Mallory shutter wheel onto the advance shaft. Make sure

the source of the interference before proceeding.

the shutter wheel is all the way down into the advance assembly

(it will only go one way due to the roll pin in the advance 16) Follow a factory shop manual to set the timing for your particular

assembly).

engine. Loosen the two Mallory 8-32 sleeve nuts to rotate the

UNILITE

plate and adjust the timing. Rotating the UNILITE

plate

Install the advance and shutter wheel into the nose cone. Make

clockwise advances the timing, counter-clockwise retards.

sure that the pin on the bottom of the advance engages the slot on

the end of the camshaft. Apply Loctite to the threads and install 17) After the timing is set, tighten the two sleeve nuts to prevent the

the advance bolt. Torque to 25 in.lb.

UNILITE

plate from rotating. Put the cover plate gasket and cover

plate in place.

Rotate the shutter wheel by hand (counter-clockwise) and release.

It should rotate about 10 degrees and "snap" back when released.

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554概述

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