Mallory-ignition ACCEL Ignition 35496 Instrukcja Użytkownika Pobierz pdf

ACCEL IGNITION www.accel-ignition.com

Ignition Model #35496

FORM 97140090

INSTALLATION INSTRUCTIONS

OVERVIEW

ACCEL Ignition Model 35496 is intended for use with Harley-Davidson®

Evolution® type motorcycle engines. The Model 35496 replaces the origi-

nal equipment (OE) electronic ignition system on 1978-99 models. The unit

mounts in the gear case cover and uses the standard H-D® timing rotor.

It can also be used on earlier models with breaker points and mechanical

advance.

The Model 35496 offers adjustable advance, adjustable RPM limit set-

tings in 100 RPM increments, and switch selectable single or dual fire

modes. Single fire mode improves starting, reduces the occurrence of

backfiring at low RPM, and improves power at high RPM. A red status LED

flashes when the engine reaches top dead center (TDC) and allows easy

static timing. The status LED also provides diagnostic information. A green

VOES LED illuminates when the VOES (vacuum switch) input is active.

AVOIDING HEAT RELATED FAILURES

Heat kills electronics. The Model 35496 uses electronic devices rated

for operation at 105 deg C (221 deg F), the highest rating available. The unit

can tolerate somewhat higher temperatures, but exposure to tempera-

tures above 125 deg C (257 deg F) will greatly reduce life expectancy. We

sometimes see problematic applications where several module failures

have occurred. The failure mode is a classic thermal intermittent where the

module stops firing one cylinder when it gets hot. We have found that these

problematic applications share one or more of the following characteristics:

• VOES switch removed or non-functional. All street driven engines

require vacuum advance. Without vacuum advance at idle and part

throttle, thermodynamic efficiency is reduced and engine temperatures

increase significantly.

• Improper carburetor jetting resulting in lean air/fuel ratio (AFR). A lean

AFR will cause the engine to run very hot. All performance engine

modifications necessitate carburetor rejetting. Carburetors are never

correctly jetted out-of-the-box. The only practical means of cor-

rectly jetting a carburetor is to test the motorcycle on a chassis dyno

equipped with an exhaust gas sniffer.

• Lack of an oil cooler on a 95 CID or larger engine.

• Exhaust pipe without heat shield in close proximity to the nose cone. If

any of the above applies to your application, the Model 35496 may be

exposed to excessive temperatures resulting in reduced life expec-

tancy. Use an infrared thermometer to check the module temperature.

INCLUDED AND ADDITIONAL REQUIRED PARTS

All units include a parts bag with crimp terminals for coil and VOES

hookup.

FL series Big-Twin® models manufactured prior to 1985, FX series Big-

Twin® and XL Series Sportster® models manufactured prior to 1984, all

Sportster® 1200S models, and all models with original equipment breaker

points will require H-D® timing rotor P/N 32402-83 or an equivalent after-

market part.

CAUTION: CAREFULLY READ INSTRUCTIONS BEFORE PROCEEDING. NOT LEGAL FOR USE OR SALE ON POLLUTION CONTROLLED VECHICLES

INSTALLATION

1. Turn off the ignition switch and disconnect the battery

ground cable before proceeding.

2. Refer to Figure 1. Remove gear case cover plate and mount-

ing hardware. You may have to drill out two rivets that hold

the cover (reassemble with supplied self-threading screws).

Remove the sensor plate or breaker points. Make sure that

the correct H-D® P/N 32402-83 timing rotor is installed.

3. You can completely remove the OE ignition harness and

external module (1980 and later models) if desired. However,

you must disconnect all OE wires from the coil except the

white/black wire from the engine stop/run switch.

4. Install the Model 35496 unit. Wrap one turn of electrical tape

around the end of the protective wire harness sleeve. This will

compress the sleeve and allow you to easily feed it through

the cable exit hole in the gear case cover. The tape will also

keep the sleeve end from fraying. You will have to enlarge the

hole with a drill on early models and some Sportsters®.

5. Rotate the unit and then place it into position as shown in

Figure 2. Be careful to avoid damage to the black plastic Hall

Effect sensors on the bottom of the unit.

6. Route the wiring harness along the side of the unit and install the

mounting standoffs as shown in Figure 3A for Big Twin or 3B for

Sportster® models. Do not fully tighten the standoffs or install

the outer cover plate until after the static timing procedure.

Figure 1 - Feeding Harness Through Exit Hole

1 2 3 4 5 6 7 8

Podsumowanie treści

Strona 1 - Ignition Model #35496

ACCEL IGNITION www.accel-ignition.com1Ignition Model #35496FORM 97140090INSTALLATION INSTRUCTIONSOVERVIEW ACCEL Ignition Model 35496 is intended for

Strona 2

www.accel-ignition.com ACCEL IGNITION27. Route the wire harness along the frame tubing to the ignition coil. Make sure that the harness is clear of

Strona 3 - OPERATING MODES

ACCEL IGNITION www.accel-ignition.com3Figure 4 - Dual Fire Wiring DiagramOPERATING MODESA single 10 position rotary switch is used to select the oper

Strona 4 - ACCEL IGNITION

www.accel-ignition.com ACCEL IGNITION4Figure 5 - Single Fire Wiring DiagramTUNING TIP: Lean air/fuel ratio (AFR) increases the tendency for spark kno

Strona 5 - PRECISE TIMING PROCEDURE

ACCEL IGNITION www.accel-ignition.com5RECOMMENDED TIMING SETTINGS Street and race advance curve families are shown in Figures 6 and 7. Each family h

Strona 6

www.accel-ignition.com ACCEL IGNITION6Figure 7 - Race Advance Curves05101520253035400 1000 2000 3000 4000 5000 6000 7000ENGINE RPMADVANCE (DEG)MA X

Strona 7 - VOES CONSIDERATIONS

ACCEL IGNITION www.accel-ignition.com7GENERAL RECOMMENDATIONS Coil primary resistance must not be less than 3 ohms. Most OE style dual fire and aft

Strona 8

www.accel-ignition.com ACCEL IGNITION8ACCEL IS A TRADEMARK OF ACCEL PERFORMANCE GROUP10601 MEMPHIS AVE. #12, CLEVELAND, OHIO 44144216.688.8300 FAX 21

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Podsumowanie treści

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