Auto Meter 6856 - Manual

12V bATTERY
(-) (+)
INSTALLATION INSTRUCTIONS
5" Tachometer
2650-1244-00 Rev. B
QUESTIONS
:
If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s),
please contact Auto Meter Technical Service at 866-248-6357.
You may also email us at [email protected].
Additional information can also be found at http://www.autometer.com/tech_faq.aspx
INTRODUCTION
• Any Auto Meter Shift-Lite™, or Quick-Lite™ Shift-Lite can be used with tachs equipped with a black, Shift-Lite connector.
NOTE 1: This tachometer has an air core meter. With power off, it is normal for the pointer to leave zero. When 12V power is applied,
the pointer will move to the correct position.
NOTE 2: Tachometers with two or three buttons use an advanced microcontroller circuit to measure engine RPM for increased accuracy and zero pointer flutter
at low RPM. When used on 0.5, 1, or 1.5 pulse per rev ignitions, a brief pause in pointer movement may be observed as RPM is rapidly decreased.
1. WIRING
Green
White
Red
Dash Lighting
Fuse
(See caution
below)
or
Tach output on
Electronic ignition
* See “Warning” below
Ignition
Switch
Blue
Black Good Engine
Ground
12V Battery
To Shift-Lite
(Optional)
WARNING
Warranty will be void if connected to coil when using
an aftermarket ignition box such as, but not limited to
products from the following manufacturers: MSD, Crane,
Jacobs, Mallory, Holley, Etc.. Prior to installation of your
tachometer, check with the ignition box manufacturer for
recommended tachometer signal location.
WARNING
Do NoT USE THiS PRoDUCT WiTH SoLiD CoRE
SPARk PLUg WiRES.
*
See autometer.com/tech_installation.aspx for specific
vehicle information.
*
CAUTION!!!
As a safety precaution the RED wire of this product should
be fused before connecting it to the positive (+) side of
switched power source. We recommend using a 4 Amp,
3Ag fast-acting type cartridge fuse (Littlefuse® #312 004
or an equivalent) inline with the RED wire of our product
for tachs that use a Shift-Lite. For tachs without a Shift-
Lite we recommend using a 1Amp 3 Ag fast-acting type
cartridge fuse (Littlefuse® #312 001 or an equivalent).
2nd 1st
Switch Closed
when shifter is in
1st or Low
(Only on 2-stage
S.L. Tachs)
Switch
Customer
Supplied
Momentary