Fig 7), Fig 6), Fig 5: tachometer yellow wire hook up options – Speedhut 4 inch & 4-1_2 inch Tachometer (No Shift-Lights) User Manual

Page 2: Aftermarket ignitions / tach output

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background image

1

0.5 PPR

1 PPR

2 PPR

3 PPR

4 PPR

5 PPR

6 PPR

(fig 6)

Type #1 ignitions

- negative

+

Yellow wire

Yellow wire connects to:

negative side of coil.

12 cyl = 6 sparks / rev

10 cyl = 5 sparks / rev

8 cyl = 4 sparks / rev

6 cyl = 3 sparks / rev

4 cyl = 2 sparks / rev

(see step #4)

Yellow wire connects to:

tachometer output terminal

12 cyl = 6 sparks / rev

10 cyl = 5 sparks / rev

8 cyl = 4 sparks / rev

6 cyl = 3 sparks/ rev

4 cyl = 2 sparks / rev

Yellow wire connects to:

negative side of coil (some cars) or

coil control wire (some cars) or

coil trigger wire (some cars).

1 spark / rev. (as a good starting point)

(see step #4)

Yellow wire connects to:

negative side of coil (some cars) or

coil control wire (some cars) or

coil trigger wire (some cars).

1/2 spark / rev. (as a good starting point)

(see step #4)

Fig 5: Tachometer yellow wire hook up options

Yellow wire

C1

g

ul

P

n

o

li

o

C

-

3

#

e

p

y

T

s

k

c

a

P

li

o

C

-

2

#

e

p

y

T

Yellow wire

Aftermarket ignitions / tach output

Yellow wire

Important note: connecting the tachometer to the wrong wire will NOT damage the tachometer or your ignition. It just won't work!

Caution- HIgh voltage sometimes present on ignition coil wires. Engine must be off when connecting yellow wire.

0

2

3

4

5

6

7

8

jack button

plug into back of tach

Set the # of pulses per revolution

4

2.Press and hold the button while powering on the tachometer. The pointer will

move to the factory default position of 4 pulses per revolution (4000RPM).

(see fig 6)
3. Press and release the button to change the pulse per revolution setting. Once

the pointer is on the desired pulse per revolution setting, press and hold the

button for 5 seconds to save the setting. The pointer will return to zero indicating

the setting has been saved.

Note: If nothing is selected after 5 seconds, the gauge will save the setting the

pointer is on and return to zero.
Tachometer will exit menu and return to normal operation.

1.Turn off power to the tachometer

Peak memory recall feature

5

Set your shift point (for use with Mini Shift Light)

The following procedures can be done at any time during operation of the tachometer

while the tachometer has power.
Shift point set

1. Press and HOLD the button for approx. 10 seconds (hold past peak recall). Pointer will travel to current set shift point.

2. Press and Hold to move pointer up and down dial. Releasing button and pressing and holding again will change

pointer movement direction.
3. At desired shift point, release button for 5 seconds. The Mini Shift Light will blink and pointer will return to zero

position on dial. New shift point is now stored in memory.

6

Note: You will need to have a shift light plugged into the back of the gauge

in order to set the shift point.

Note: Tachometers have port

on right side for Mini Shift Light.

(sold separately)

Note: Plug button cable in back

on LEFT SIDE only.

Note: Tachometers can use the optional mini shift light (sold separately). Simply, plug the

mini shift light into the RIGHT port (see fig 7) on the back of the tachometer

Gauge Top

(optional accessory)

Mini Shift Light

right side only

(fig 7)

Press and hold gauge button down and gauge needle will display maximum peak reading for as long as button is pressed down.

Note: if button is held for longer than 10 seconds, tach will enter Mini Shift Light set mode.

To retain peak reading (NOT CLEAR IT):

While showing peak reading, release button, wait 2 seconds, gauge will return to normal operation and retain the peak reading.

To clear peak reading:

While showing peak reading, release the button, and immediately press and release the button again within 2 seconds. Pointer will travel to zero to indicate peak has been cleared.

3

Hook up Yellow wire.

WARRANTY - Speedhut inc. warrants to the consumer for a period of 5 years from the date of purchase that the product will be free from defects in materials or workmanship.

Speedhut warrants to the consumer for a "LIFE-TIME" that the product circuit board will be free from defects in materials or workmanship.

Please contact Speedhut service department If you have a problem with this gauge.

Speedhut Inc. 165 North 1330 West B2, Orem, Utah 84057 | [email protected] | (801) 221-1460 (9am - 5pm MST)

*** Steps 6 and 7 are steps for use with optional Mini Shift Light ***

1.5 PPR

2.5 PPR

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