Who would have thought

Sometime in 1998, Ducati replaced their aging 350 watt alternator with a much improved 3 phase
unit outputting 500 watts.

Owners of the older Superbikes are without the extra juice to add auxiliary fog or driving lamps.
But, it can be done with some hard work.

To add a pair of 55 watt fog lamps to my 748, I have replaced all four of the 5 watt factory turn
signal bulbs with LEDs, added relays for the fog lamps, and headlights, the rear lamp now
utilizes a single bulb instead of the original two bulbs, and the license plate is now illuminated by an LED.


This is the fog lamp as it comes from the factory. You won't be using the rubber boot. This unit is a relatively cheap one. Pilot PL-280B. $29.00 a pair. At this time you will need to remove the wires and the bulb from the housing.	Your first modification is to remove the existing mounting tabs. Cut the tabs as shown rather than pulling the entire tab off. Otherwise you will have to seal the resulting hole later on (it is spot welded on).	Remove the mounting tabs. Remove as much as you can with out cutting into the housing itself.


This is how the modified lamp housing fits into the original turn signal housing. Continue making the modifications to the other side. Be sure to wear protective gloves and goggles!	Cutting the amber lens so that the fog lamps fit into them. It will be a one inch high cutout. More details on this process to come.	The switch was from a local electronics shop but I've seen them at Radio Shack. DPDT About $6.00


Here you see the two relays mounted on the headlamp housing. Typical accessory lamp relays 30 amp capability. About $5.00 each.	Hey! It actually works!

I want to point out that I left the High beam circuit alone. No relay, no switch. This was to allow the high beam to be used simultaneously with the fog lamps.

The brown wire coming from the fuse box is controlled by the ignition switch. This was to prevent draining the battery.

The center two poles of the switch are bridged. The fog lamps utilized the wiring harness that came with them.

Now, please note that this schematic reflects the older electronics of the Superbike series. The later versions utilize relays as a standard feature. This fact combined with the later 500watt, 3 phase alternator makes this schematic wrong for the later bikes.

Please refer to a recent letter from Larry Kelly about wattage, maximum usage,
and remedies before starting this project!

It must be noted that this modifications may violate DOT laws. This modification is experimental and untested. Do these modifications at your own risk!

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