Auto Meter 2893 User Manual

2650-595A

1

1

1

2 2 2

UP

UP

UP UP

DN

DN

4 CYL / 2 PULSE

6 CYL / 3 PULSE

8 CYL / 4 PULSE

INSTALLATION INSTRUCTIONS

25/8" DIA. ELECTRIC TACHOMETER

®

If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s), 

Additional information can also be found at 

IMPORTANT

This tachometer is factory calibrated to operate  on 8 cylinder engines. 
For  4  or  6  cylinder  engines,  it  is  necessary  to  make  the  proper 
adjustments to adapt this tachometer to your cylinder range.

please contact Auto Meter Technical Service at 815-899-0801.

You may also email us at [e-mail].

http://www.autometer.com/tech_faq.aspx

NOTE:  This tachometer has an air core meter. The tach pointer   

may not always rest at zero. This is normal. When engine 
  is started, pointer will position on the correct RPM.

Calibration

To change the calibration of the  tachometer, remove  the flat  head screw  at the  rear of the cup. 
Carefully slide the cup back along the wires to expose the inner case. Remove the snap in light 
socket assembly  to  access the cylinder  select switches. The  switches  are located to  the  left of 
the light hole. Use a small screwdriver or an unwound paper clip to change the switch settings.

Unwound 

Paper Clip

4 CYL. - Switch One up, Switch Two down.
6 CYL. - Switch One down, Switch Two up.
8 CYL. - Both switches up.

QUESTIONS:

Switch

Wiring

WHITE

FUSE

(See caution 

below)

BLACK

GREEN

RED

12V DASH LIGHTING

12V IGNITION 
SWITCH (+)

GROMMET

IN FIREWALL

BLACK

GREEN

GOOD 

ENGINE 

GROUND

OR

EARLY MODEL

IGNITIONS

GREEN

ELECTRONIC 

IGNITION

Tach 

Terminal

CAUTION!!! 
As  a  safety  precaution,  the  +  12  V  terminal  of  this  product 
should  be  fused  before  connecting  it  to  the  12V  ignition 
switch.   We  recommend  using  a  1  Amp,  3  AG  fast-acting 
type cartridge fuse (Littlefuse® # 312 001 or an equivalent).

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.

SERVICE

For service  send your  product to Auto  Meter in  a well packed  shipping carton.  Please include a  note explaining  what the problem  is along  with your phone  number. Please  specify when you 
need the product back. If you need it back immediately mark the outside of the box “RUSH REPAIR,” and Auto Meter will service product within two days after receiving it. ($10.00 charge will be 
added to the cost of “RUSH REPAIR.”) If you are sending product back for Warranty adjustment, you must include a copy (or original) of your sales receipt from the place of purchase.

12 MONTH LIMITED WARRANTY

Auto Meter  Products, Inc.  warrants to  the consumer  that all  Auto Meter  High Performance  products will  be free  from defects  in material  and workmanship  for a  period of  twelve (12)  months from  date of  the 
original purchase. 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. be responsible for special, incidental or consequential damages or costs incurred due to the failure of this product. Warranty claims to Auto Meter 
must be transportation prepaid  and accompanied with dated  proof of purchase. This warranty applies only to the original purchaser of product and is  non-transferable.  All implied  warranties shall be limited  in 
duration to  the said  12 month warranty period. Breaking the instrument seal, improper use or  installation, accident, water damage,  abuse, unauthorized  repairs or  alterations voids  this warranty.   Auto  Meter 
Products, Inc. disclaims any liability for consequential damages due to breach of any written or implied warranty on all products manufactured by Auto Meter.

WARNING

FOR SERVICE SEND TO: AUTO METER PRODUCTS, INC. 413 W. Elm St., Sycamore, IL 60178 USA [phone]

© 2005 Auto Meter Products, Inc.

Email us at [e-mail] 

2650-595A        9/12/05