Ducati 900 SS Supersport 2001 Workshop Manual (P/N 914.7.022.1D)

This Ducati factory workshop manual covers maintenance and repair of the 2001 900 SS Supersport, with its air-cooled L-twin engine and Marelli fuel injection. The English/Italian edition carries P/N 914.7.022.1D.

PDF Access, Diagram Detail, and Page Count

Search, navigation, and wiring detail: PDF text search is not available, and there are no embedded PDF bookmarks. Small wire-color codes and connector labels require zooming; fine lines in the electrical schematic are pale. Printed pages 47 and 48 appear in reverse order.

One printable 258-page PDF contains 256 numbered interior pages and two outer covers. The total includes the title, contents, section dividers, blank pages, and imprint.

Desmodromic Engine, Fuel Injection, and Chassis Service

These selected coverage highlights outline the main workshop areas. Other topics include throttle and fast-idle cable adjustment and headlight beam alignment.

• Engine repair: Engine removal, crankcase separation, cylinder-head overhaul, piston and crankshaft inspection, bearing replacement, and reassembly with factory torque tables.

• Desmodromic timing: Opening and closing valve-clearance checks, shim selection, toothed timing-belt replacement and tensioning, and verification of cam timing.

• Clutch and gearbox: Dry multi-plate clutch diagnosis and overhaul, gear and selector-fork inspection, shaft shimming, and selector adjustment.

• Fuel injection: Throttle-position sensor setting, throttle-body synchronization, idle-mixture adjustment, and Marelli injection-ignition system descriptions with MATHESIS test references.

• Suspension and brakes: Showa front-fork overhaul, rear-shock adjustment and spring replacement, steering-head bearing service, brake-pad replacement, and hydraulic bleeding.

• Electrical testing: Charging-system checks, relay and switch continuity tests, starter-contactor checks, wiring diagrams, wire-color legends, and harness-routing illustrations.

Written for Ducati Authorized Service Centers and skilled workshop technicians, this manual assumes a technical background and access to the specified service tools.

Engine Inspection and Desmodromic Adjustment

Factory tightening torques and the motorcycle component disassembly sequence chart support workshop planning by showing which assemblies must be removed to reach a component. A separate engine disassembly sequence chart maps access to internal engine parts.

Inspection coverage includes cylinder and piston matching, connecting-rod bearing checks, crankshaft measurement, valve guides and seats, and main-bearing shimming. Oil-pressure checks and the lubrication diagram connect measured pressure with the pump, relief valve, filters, cooler, and engine oil passages.

The desmodromic valve timing diagram identifies the opening and closing rocker arrangements. The adjustment section explains their inverse clearance relationship and uses shim-checking tool 88765.1322; an excessively thick closing shim can cause rapid camshaft and rocker-arm wear.

Work on the desmodromic valve train and pressurized fuel system requires adherence to the factory safety precautions.

Marelli Injection and Throttle-Body Setup

The Marelli IAW 1.5 section explains timed sequential injection, ignition control, sensor inputs, and starting and acceleration strategies. The ignition-injection system diagram links the control unit, injectors, coils, sensors, relays, and diagnostic connection.

Step-by-step instructions cover throttle-sensor positioning, airflow balancing, and idle-mixture adjustment using MATHESIS, a vacuum gauge, and exhaust-gas testing equipment. Broader component and wiring tests refer to the separate MATHESIS tester instructions; the factory ECU maps are not presented as user-editable.

Fuel-tank service covers the pump, filter, and level sensor. The pump intake mesh can be damaged by a strong compressed-air jet. Canister hose-routing illustrations address the additional evaporative-emissions equipment on U.S.A. and California versions.

Showa Suspension, Steering, and Brake-Service Limits

The suspension sections cover the Showa GD131 front fork and GD132 rear shock, including damping and preload adjustments. Front-fork overhaul includes seal and bushing inspection, oil filling, and reassembly; the damper cartridge is to remain closed.

Chassis procedures address the light-alloy swingarm, wheel bearings, steering-head bearings, and hose routing around the tubular trellis frame. Frame dimensions support inspection, with damaged frames specified for replacement.

Brembo brake service is limited: The manual describes pad replacement, fluid changes, bleeding, and hose positioning, but advises against work on the internal components of brake calipers and master cylinders.

Charging Checks and Harness Routing

Charging-system testing uses the MATHESIS current clamp to distinguish battery charging from discharge under electrical load. Further checks address the generator, rectifier-regulator, handlebar switches, ignition switch, relays, and side-stand sensor.

Harness-routing illustrations show control-unit, fuse, and frame wiring positions, with cross-references for following connections between views.

Examples of Clutch, Lubrication, and Electrical Data

The clutch inspection section specifies a minimum friction-plate thickness of 2.5 mm. The fluid-capacity table lists 3.9 liters for the engine sump and filter together.

Electrical reference data identify a 12 V, 55/60 W dual-filament headlamp bulb. A separate 40 A fuse protects the electronic regulator; it should not be confused with the main fuse in the fuse box.