Advertisement
2650-1244-00
If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s),
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
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).
INSTALLATION INSTRUCTIONS
5" Tachometer
QUESTIONS
please contact Auto Meter Technical Service at 815-899-0801.
You may also email us at service@autometer.com.
Additional information can also be found at http://www.autometer.com/tech_faq.aspx
Switch Closed
when shifter is in
1st or Low
Black
To Shift-Lite
(Optional)
:
Green
White
Dash Lighting
Fuse
Red
(See caution
below)
1st
2nd
Blue
(Only on 2-stage
S.L. Tachs)
Switch
Customer
Supplied
Momentary
*
*
See autometer.com/tech_installation.aspx for specific
vehicle information.
*
or
(-)
(+)
Ignition
Switch
Good Engine
Ground
12V Battery
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.
See "Warning" below
Tach output on
Electronic ignition
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Auto Meter 6858
Summary of Contents for Auto Meter 6858
- Page 1 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.
- Page 2 1, 1.5, 2, 2.5, 3, and back to 4 PPR. See the table below to find the pointer reading that corresponds to the desired PPR. 4. When the pointer indicates the desired PPR, press and release the yellow RECALL button to permanently store the settings and exit Configuration mode. FOR MODELS 6858, 6857, 6856, 3906 AND 6851: ENGINE Most 2 cyl.
-
Page 3: Trouble Shooting
Products that fail within this 12 month warranty period will be repaired or replaced at Auto Meter’s option to the consumer, when it is determined by Auto Meter Products, Inc. that the product failed due to defects in material or workmanship. This warranty is limited to the repair or replacement of parts in the Auto Meter instruments. In no event shall this warranty exceed the original purchase price of the Auto Meter instruments nor shall Auto Meter Products, Inc.
Need help?
Do you have a question about the 6858 and is the answer not in the manual?
Questions and answers