Auto Meter 2304 - Manual

IMPORTANT
WEAR
SAFETY GLASSES
INSTALLATION INSTRUCTIONS
3 3 /
4
" TACHOMETER
For use on 4, 6, or 8 cylinder engines with standard ignitions
This product not valid for race contingency money.
MODEL 2300, 2301, 2302, 2303, 2304, 2309
Instr. No. 2650-468H
by
®
®
Engine Cylinder Adjustments
This tachometer is factory calibrated for 8 cylinder engines. For operation on 4 or 6 cylinder engines, a switch adjustment must be made.
Wiring
Connect the tachometer wires as shown. The wiring diagram shown is a typical installation.
For Chrysler Blue, Gold and Silver
Boxes, Ford Standard Electronic
ignitions, and most other OEM Standard,
CD and Electronic ignitions.
12V BATTERY
COIL
Ignition Coil
Tach base can be mounted in either
direction for convenient mounting.
WHITE
RED
BLACK
GREEN
Grommet
In Firewall
12V Dash Lighting (+)
Good Engine
Ground
Switched 12V(+)
source on Fuse
Box *
BLACK
GREEN
For ignitions that provide a tach terminal
(except MSD-5).
MSD
Electric
Ignition
Tach Terminal
IMPORTANT
Warranty will be void if
connected to coil on
MSD capacitive ignition
WHITE
RED
BLACK
GREEN
Grommet
In Firewall
GREEN
BLACK Good Engine
Ground
Switched 12V(+)
source on Fuse Box *
12V Dash Lighting (+)
For GM HEI ignitions.
*Optional: Wire to a switched 12V source with an in line fuse.
Coil
(-)
Coil
GM HEI
(6, 8 CYL.)
Some
(4, 6 CYL.)
OR
WHITE
RED
Tach Terminal
GREEN
GREEN
GREEN
BLACK BLACK
12V Dash
Lighting (+)
Switched 12V(+)
source on Fuse Box *
Good
Engine
Ground
Grommet
In Firewall
Figure A
Figure B
Figure C
1. Remove cup by placing the tachometer face down on a
smooth surface. Remove the phillips screw on the back and
gently lift the cup off to expose the circuit board. Take care
not to pull on the wires.
2. Locate the switch on the circuit board. Move each of the two
switches to the proper cylinder selection according to the
diagram illustration on the right.
4 Cyl.- Both switches down
6 Cyl.- Switch #1 down. Switch #2 up
8 Cyl.- Both switches up
3. Replace the case on the tach with mounting bracket at the bottom (make sure the
wires are clear of the screw hole).
4. Replace the screw.
O O O N N N
1 1 1 2 2 2
4 cylinder 6 cylinder 8 cylinder