User Manual

8 CYL. (4 Pulse) — NO adjustment is necessary.
6 CYL. (3 Pulse)   
 
4 CYL. (2 Pulse)   
 
4 CYL. (1 Pulse)   
 
Calibration
8 CYL. — NO adjustment is necessary.
6 CYL.  
 
4 CYL.  
  
electrical tape.
CLIP NECESSARY
WIRE LOOPS. DO NOT
PUSH WIRES INTO CASE.
WARNING
     
recommended safe shift point before
setting shift point on tachometer. Failure
to do this could lead to over-revving of
engine, causing serious damage to engine
and car.
CLIP NECESSARY
WIRE LOOPS. DO NOT
PUSH WIRES INTO CASE.
* If you are unsure of your
vehicle’s pulse(s) per
revolution or specific
calibration requirements,
contact Auto Meter
Tech Support at (815)
899-0801 or go to http://
hp.autometer.com/
techtips/ techtips.html for
information.
(Units with
orange &
brown loops)
Calibration
(Units with blue & brown loops)
Mounting
(Shift-Lite model shown)






(if applicable), tach, and mounting base to desired positions (see figure 4


a proper

7
8" 
center line of strap and step of tachometer casing for best mounting. For

directional, do not force fit!





1)
2)
3)
6)
4)
1
7
8"
Note: 
5)
The tachometer is congured at the factory for 4 PPR. To change the PPR on tachs with three buttons, follow the steps below:
  
  

  (erase)(recall)

  
To change the PPR on tachs with two buttons, follow the steps below:
  
  

  

  
  
FOR MODELS 6858, 6857, 6856, 3906 AND 6851:
ENGINE Most 2 cyl. Most 4 cyl. Most 6 cyl. Most 8 cyl.
         
         
FOR MODELS 6809, 6811, 6854, 4499, 6852 and 5795
ENGINE Most 2 cyl. Most 4 cyl. Most 6 cyl. Most 8 cyl.
         
         
FOR MODEL 6855:
ENGINE Most 2 cyl. Most 4 cyl. Most 6 cyl. Most 8 cyl.
         
         
2. CALIBRATION (MODELS WITH NO CALIBRATION LOOPS)
IMPORTANT NOTE
This tach has an air core meter movement.
       
      
      
