Mallory Ignition Mallory window rpm activated switch 646 - Manual (Page 2)

MALLORY IGNITION 550 MALLORY WAY, CARSON CITY, NV 89701 2
HYFIRE ® IV
IGNITION SYSTEM
®
Connect ORANGE wires to a device
to be turned ON at a selected RPM
Connect PURPLE wires to a device to
be turned OFF at a selected RPM
Connect to 12 VOLT source
DO NOT connect to COIL +
RED
C – CYLINDER SELECT L – LOW RPM H – HIGH RPM
DOWN UP
WINDOW RPM SWITCH
P/N 646
MODE
VALUE
MODE
®
BLACK
To engine block or
chassis ground
GREEN
To tachometer
Connect this harness according
to the instructions applicable to
the HYFIRE ® being used.
To battery (+)
terminal
Used for magnetic pickup
distributor or crank trigger
To engine block or
chassis ground
HOW TO SET THE WINDOW RPM SWITCH
On the front panel there are three buttons and an LED display. The
“MODE” button cycles through the low RPM setting, the high RPM
setting, and the cylinder number select. The “UP” and “DOWN”
buttons move the RPM in 100 RPM increments in either of the RPM
modes, and select 3-12 in the cylinder select mode.
The RPM range is 1000 to 16000 in 100 RPM increments. The high
setting (H) must be at least 200 RPM higher than the low (L) setting
for the switch to operate properly. The display shows RPM in
hundreds (for example, “76” would be 7600 RPM.
Set the cylinder select mode to the number of cylinders your engine
has (4-cycle only).
C – CYLINDER SELECT
L – LOW RPM
H – HIGH RPM DOWN
UP
WINDOW RPM SWITCH
P/N 646
MODE VALUE
MODE
®
FIGURE 2
FIGURE 2
RPM ACTIVATED SWITCH WITH HYFIRE ® IV