[stormcrow]

The red relay is used primarily for the fuel pump. The white smoke is probably oil in the combustion chamber burning off. Start the engine and run it for awhile to see if it clears up. Black smoke indicates a rich mixture.

The red relay has a blocking diode across the coil which is used to provide voltage to the fuel pump terminal both when the key is turned to the start position or to the on position when the engine is running. The reason for this is that the fuel pump relay will stop the fuel pump if for any reason the engine stops running with the ignition key in the on position.

Steve