Shift
Button Configuration For riders and racers with air shifters...
Some "electric over air conversion" and possibly some
other electrically assisted air shifter systems, employ a negative
or Ground return from the shift button to the solenoid valve to
signal the shift. In this wiring arrangement a hot wire is connected
to one side of the solenoid valve. Then one side of the shift
button is connected to ground and the other side of the shift
button is connected to the negative side of the solenoid valve
to actuate the shift when the button is pushed.
This is a potentially dangerous
configuration...
Should the wire running from the shift button to the solenoid
valve become cut, nicked, burned or otherwise chafed and then
become grounded the solenoid valve will actuate the air shifter.
This could happen at ANY time.
Avoid the danger...
It is often suggested that the existing horn button be used as
the shift button. This is not a problem IF the button is fed by
a hot wire, switched and fused of course, and it sends a hot signal
to the solenoid valve to actuate the air shifter. The other side
of the solenoid valve should then be connected to a good ground.
Fail safe...
If the signal wire to the solenoid valve were to become grounded
the fuse would blow when the button was pushed avoiding any danger.
