Bold reference numbers in this section identify parts shown in this exploded view diagram. These parts do not appear in the figures near the text.

The “DDS” diagnostic system lets you diagnose any faults in the injection-ignition system via a serial port. This system provides a full range of features to test a number of motorcycle devices, measure the current and voltage outputs from any electrical items, test individual components and take pressure and temperature measurements.

The DDS (1) consists of a palmtop display (A), a BBAD self-diagnosis module (B), a display memory card (C) and a BBAD memory card (D).

The palmtop touch screen display (A) displays data and allows settings to be made via the suitable pen, housed in the hole on the side of the display.

The software for communicating with the DUCATI control units resides in the BBAD memory card (D) located in the BBAD module (B).

A printer can be connected to the DDS (1) via the serial port (COM1) (G) positioned on top of the instrument (1) in order to print test reports.

Supply voltage must be between 9 and 16 Volt DC.

Make sure voltage never drops below this limit during operation: this could happen when starting the engine or when the engine is idling if the bike battery is in less than perfect operating conditions. If the tester detects a power supply voltage below 9 Volts, it will abort any procedures underway at that time. Once voltage is again within specified limits, you will have to repeat procedure set-up.

Both timing belts can be checked and adjusted using the DDS leaving the engine onto the frame. For this purpose, connect an optical reader to the DDS. The green led onto the reader shows correct positioning before the timing belt. The reader also features an infra-red emitter (A) and a receiver (B) to detect timing belt vibrations whilst being duly flicked with a finger.

Switch on the DDS (1), refer to "Instrument power supply".

Aim the middle green led of the sensor (15) at the centre of the belt section by positioning the sensor (15) at the same level of the belt at a distance of 1-1.5 cm.

Press on "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Belt tension" icon and then "Start" to enter the "Belt mechanical tension" page.

Do not flick several times, as the DDS needs at least 1 second to read the value.

Belt tension values are indicated in Sect. C 1.1, Timing/valves.

Timing belt tension could decrease in time as a result of normal wear and tear. When checking belt tension, restore specified nominal values (Sect. C 1.1, Timing/valves) or in any case set tension to at least 80% of nominal values when reading is below 70 Hz.

If the crankcase has been removed from the frame, turn screw (24) using the suitable tool (27) and position tool pusher (U) on the tensioner.

Once desired tension is set, tighten the screws (24) and (25) to the specified torque (Sect. C 3, Engine torque settings).

Set the crankshaft at the TDC of the vertical cylinder, in the combustion stroke (valve closed), and repeat the same procedure used for the horizontal cylinder, reading tension on section (22) of the vertical belt.

When the throttle body, throttle position sensor, electronic control unit or wiring have been replaced, perform this procedure first before starting the engine.

Lift the fuel tank (Sect. L 2, Removing the fuel tank).

Switch on the DDS (1), refer to "Instrument power supply".

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

Select "Engine electronic system" and press "Confirm" (D) to confirm. Then press "Self-diagnosis" icon to enter self-diagnosis function.

If there are problems in performing the operation, the relevant error messages are displayed: you need to confirm or reject each message by pressing "Confirm" (D) or "Exit" (E), respectively.

The zero setting procedure establishes a connection between electronic control unit and throttle body. For this reason, the zero setting procedure must be repeated each time the throttle body, throttle position sensor, electronic control unit or wiring are replaced.

Connect exhaust gas analyser inserts part no. 88713.1010 to exhaust pipes pick-up points, using couplings (20).

Ensure that throttles are against the stop screw (throttle twistgrip fully closed). Ensure choke is off and that throttle cable free play is correct. Reset the TPS as indicated in "Zero setting the throttle position sensor (TPS)", in this section.

Check:

When oil temperature is above 75° C you can start the following adjustment procedure; always bear in mind that at the end of the adjustment oil temperature should not exceed 100° C.

If the value is included in the above range, check the CO level and ensure that values are min. 0.5 and max 0.9 for both cylinders. If CO reading is lower or higher than indicated range, open or close by ¼ of a turn the by-pass screw (21) of the cylinder having incorrect reading and allow 20 seconds before checking again with the gas analyser.

If idling speed is not within the above-indicated range, open or close by ¼ of a turn the by-pass screws (21) of both cylinders and check again CO level once idling rpm is correct.

Insert fitting (9) in the hose (12) fitting, and place two copper washers (20) in-between. Screw the connector (9) of the hose (12) into the threaded hole (M10x1mm) in the RH cover. Screw the connector all the way in. Refit the pressure switch (21) complete with seal to the connector (9) and reconnect it to the electric system connector (A).

Switch on the DDS (1), refer to "Instrument power supply".

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Pressure Measurement" icon (D) and then "Start" (E).

Values can be displayed in three ways: as numbers (one mode) or as graphs (two modes); press "Display mode" (F) to select the display mode.

Measured value is indicated next to letter (A) or (C) depending on the cable used: if socket (A) of cable (3) is used, measured value will correspond to letter (A) on the screen.

(Oil temperature at least = 80°C)

1100 - 1300 rpm

over 0.8 bar

3500 - 4000 rpm

over 4 bar

Maximum pressure must not exceed 6.0 bar.

A pressure which is too high indicates that the pressure-relief valve is jammed. A pressure which is too low indicates that the pressure-relief valve is jammed in the open position, that the spring is too weak, or that the oil pump is faulty. Other causes of incorrect pressure readings include: badly worn seals and gaskets; badly worn engine.

Remove the gauges and refit the pressure switch (21) with its seal. Tighten it to the specified torque (Sect. C 3, Engine torque settings).

The performance and efficiency of an engine are directly linked to the compression inside the combustion chambers of the two cylinders. Compression which is too high/low or a large compression difference between the two cylinders will cause a drop in engine performance and can cause engine breakdowns.

Screw the cylinder compression cable (11) into the spark plug hole.

Connect the pressure sensor (5) to cable (11).

Switch on the DDS (1), refer to "Connection to the bike".

Connect the pressure sensor (5) to port (A) or (C) of cable (3).

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Cylinder compression" icon (D) and then "Start" (E).

Lift the fuel tank (Sect. L 2, Removing the fuel tank).

Using fuel pressure tube (17), connect one end (D) to union of delivery hose to tank and the other end (E) to delivery hose (20): in this way you create a pressure pick-up point (F).

Switch on the DDS (1), refer to "Instrument power supply".

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Pressure Measurement" icon (F) and then "Start" (G).

Values can be displayed in three ways: as numbers (one mode) or as graphs (two modes); press "Display mode" (H) to select the display mode.

Measured value is indicated next to letter (A) or (C) depending on the cable used: if socket (A) of cable (3) is used, measured value will correspond to letter (A) on the screen.

Maximum pressure must be 3 bar (nominal pressure).

When through with the test, remove the components of the diagnosis instrument and refit the delivery tube (20), secure it with clamp.

If the immobilizer is faulty, follow the emergency procedure to start the engine described in section P 8, Immobilizer and Transponder that consists in entering the emergency code, also using the DDS.

Switch on the DDS (1), refer to "Instrument power supply".

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

Select "Engine electronic system" and press "Confirm" (B) to confirm. Then press "Self-diagnosis" icon to enter self-diagnosis function.

A box is displayed with a field for the five figures of the emergency code. Use the red arrows (E) and (F) to enter each digit: confirm each digit entered pressing "Confirm" (B).

If there are problems in performing the operation, the relevant error messages are displayed: you need to confirm or reject each message by pressing "Confirm" or "Exit" (G), respectively.

The DDS guides the operator step by step through the various diagnosis stages and provides the descriptions and the documents on the different vehicle components such as wiring diagrams for the electronic systems and details on the system layout and parts location.

Switch on the DDS (1), refer to "Instrument power supply".

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

It is possible to enter the Self-diagnosis function, pressing "Self-diagnosis" icon, to see if the system is faulty. If errors are present, the symbol (D) is displayed. Press "Errors" (E) to display the errors. Once errors are detected, it is possible to fix them using the Step-by-step diagnosis; press "Step-by-step diagnosis" icon (C).

You can determine the engine rpm required for generator to produce just enough current to charge battery, feed the injection-ignition system and all electric items fitted to motorcycle. When applied to a cable, the amperemeter clamp (18) detects the magnetic field generated by the current passing through that cable.

Remove the right-hand side body panel (Sect. E 3, Removing the side body panels).

Then, apply the amperemeter clamp to the battery positive terminal lead with the arrow on the clamp pointing towards the battery positive (+) terminal.

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Ammeter" icon (F) and then "Start".

If the measured current is a positive quantity, it means that generator is feeding all electric items and charging battery at the same time. A negative value means that charging system is not feeding the loads and a significant amount of current is supplied to the battery, currently discharging.

If polarity is reversed when clamping amperemeter onto cable, readings polarity will also be reversed. This will lead to wrong diagnosis.