Triumphrat

GeneralPig

Finally tracked the problem down with my TBird electrics. (Well-in the end the garage did).

There is a cluster of wires going up to the clutch switch-they are in plastic tubing between the headlight cowl and the ignition switch.

In these wires is a small, sealed black box, about 1.5" long. Nowhere does this thing show up on the wiring diagram. I have electricity to it but not coming out of it.

Anybody have any idea what it is and what it does?

jimmyj900

The only black box in the wiring I know of is the electronic trigger for the temperature idiot light and it's located in the cable to the instrument cluster.

The temp trigger has 4 wires coming out of it:
Brown -- Instrument +12
Black/Yellow -- System Ground
Yellow/White -- Temp Sensor
Black -- Lead to Temp Idiot Light

The black lead applies a ground to the lamp when the temperature sensor resistor goes low, so you can short the temp sensor lead to ground which should light the temp lamp.

Jim

__________________
Note: This post may have been altered without the knowledge or consent of the author.

http://s279.photobucket.com/albums/k...0Head%20Stuff/

GeneralPig

Thanks. That'll be it, then.

jimmyj900

The temp sensor circuit is completely isolated from the ignition/starting circuits so that can't be the cause of your starting problem.

Jim

__________________
Note: This post may have been altered without the knowledge or consent of the author.

http://s279.photobucket.com/albums/k...0Head%20Stuff/

GeneralPig

The ignition circuit and all safety switches (clutch, side stand, neutral) all work fine. The bike will start and run properly with the clutch pulled in and the sidestand up. Found 2 breaks in wires going up to the relay box. But still no current to neutral and oil lights. Given it to a garge to fix.