This manual covers the Monster 400 and Monster 620 models from 2006 onwards. Known for their iconic L-twin Desmodromic engines, steel trellis frames, and distinctive Italian styling, these motorcycles offer a blend of performance and agile handling. The Monster 400, with its approximately 398 cc displacement, serves as an accessible entry point, while the Monster 620, featuring around 618 cc, provides a more potent riding experience. Both models exemplify heritage in crafting performance-oriented naked sportbikes, celebrated for their unique character and engineering.
This comprehensive Service Repair Workshop Manual provides detailed information for all repairs, covering every aspect of the Monster 400 and 620 from 2006 onward. It includes in-depth coverage of engine and clutch systems, cooling, fuel, exhaust, ignition, and electrical components, as well as transmissions, final drive, wheels, tires, steering, suspension, frame, bodywork, and brakes. The manual details scheduled maintenance, major repair procedures, and fault-finding troubleshooting, supported by numerous high-quality pictures and diagrams. This resource is designed to assist owners and technicians in maintaining and repairing these vehicles effectively.
Production Years Covered:
2006 Onward
Engine Codes Likely Covered:
L-Twin Desmodromic (specific codes vary by sub-model and region, refer to VIN)
Vehicle Segment:
Naked Sportbike / Standard Motorcycle.
Key Competitors:
Suzuki SV650, Honda CB500/CB600 Hornet, Kawasaki ER-6f/ER-6n, Triumph Street Triple (depending on exact market and year).
Engine Architecture:
L-Twin Desmodromic engine, known for its distinctive torque delivery and sound.
Chassis Design:
Steel Trellis frame, a signature Ducati element, contributing to agile handling.
Design Philosophy:
Simplicity, performance, and Italian style.
Manual Scope:
All repairs covered A-Z, all models within the Monster 400 and 620 range from 2006 onwards.
Estimated Page Count:
Extensive (specific count not provided, but described as 'full & complete' and 'great detail')
Manual Type:
Service Repair Workshop Manual
Language:
English (implied by typical manual content and target audience)
Engine Systems:
Engine & Clutch, Cooling Systems, Fuel & Exhaust, Ignition & Electrical.
Drivetrain Systems:
Transmissions, Final Drive (chain and sprockets, likely).
Chassis Systems:
Wheels & Tires, Steering & Suspension, Frame & Bodywork, Brakes & Brake Assembly.
Electrical Systems:
Ignition & Electrical, Wiring Diagrams.
Maintenance Procedures:
Scheduled Maintenance & Servicing.
Repair Procedures:
All major repair topics covered in great detail, including engine, transmission, braking system overhaul, suspension rebuilds, electrical diagnostics.
Troubleshooting Procedures:
Fault Finding Troubleshooting.
Technical Depth:
Professional Quality Information, suitable for 'professionals', implying comprehensive detail from basic maintenance to complex repairs and diagnostics.
Visual Aids:
Lots of High Quality Pictures & Diagrams.
File Type:
PDF (Portable Document Format)
Operating System Compatibility:
All Operating Systems (PC & MAC Compatible), including Windows 95, 98, 2000, Me, XP, Vista, Windows 7 & 8.
Document Quality:
High Resolution (implied by 'high quality pictures & diagrams' and 'professional quality information')
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Engine Type:
Desmodromic 4-stroke L-twin (V-twin at 90 degrees)
Cooling System:
Air-cooled (Monster 400), Liquid-cooled (Monster 620)
Valve Actuation:
Desmodromic valve control
Monster 400 Displacement:
Approx. 398 cc (Specifics may vary by market and sub-model)
Monster 620 Displacement:
Approx. 618 cc
Monster 400 Horsepower Estimate:
Likely in the 30-40 HP range (varies significantly by market and tuning)
Monster 620 Horsepower Estimate:
Approx. 60-65 HP @ 9250 rpm
Monster 620 Torque Estimate:
Approx. 55-60 Nm @ 7750 rpm
Fuel Delivery:
Carbureted (Monster 400, early models) or Fuel Injection (Monster 620, likely EFI with throttle bodies)
Fuel Type:
Unleaded Gasoline (95 RON recommended)
Ignition Type:
Digital Electronic Ignition (CDI or ECU controlled)
Transmission Type:
5-speed Manual (likely sequential gearbox)
Optional Transmission:
N/A
Clutch Type:
Wet multi-plate clutch (likely hydraulic actuation)
Final Drive:
Chain Drive (likely 520 or 525 pitch)
Wheelbase:
Approx. 1400-1450 mm (Varies by model year and specific Monster variant)
Seat Height:
Approx. 770-800 mm (Very accessible)
Dry Weight:
Approx. 165-180 kg (for Monster 620, dry; varies by sub-model)
Crash Test Ratings:
N/A (Motorcycles typically do not undergo standardized crash testing like cars)
Braking System:
Dual disc front brakes, Single disc rear brakes. High-performance calipers (e.g., Brembo, Nissin depending on spec).
ABS:
Optional or standard on later models of the 620, check specific VIN.
Lighting:
Halogen headlight, LED taillight (likely on later models), standard turn signals.
Instrument Cluster:
Analog tachometer, digital speedometer, odometer, trip meters, basic warning lights.
Audio System:
N/A (Motorcycle design focused on performance, not typically equipped with audio)
Traction Control:
N/A (Not typically featured on these models)
Ride Modes:
N/A (Mechanical linkage for throttle control)
Bluetooth Connectivity:
N/A
Oil Change Interval:
Typically every 7,500 - 10,000 km or annually (refer to manual for specific intervals).
Desmo Service Interval:
Crucial for Desmodromic engines; valve clearance check and adjustment typically every 12,000 - 24,000 km (very important and specific to Ducati).
Chain Maintenance:
Regular cleaning, lubrication, and tension adjustment (e.g., every 500-1000 km).
Engine Oil Specification:
SAE 10W-40 or 15W-50 Fully Synthetic Motorcycle Oil (meeting API SG or higher, JASO MA specification).
Coolant Specification:
Ethylene glycol-based coolant with anti-corrosion additives (e.g., Motul Motocool Expert, specified for liquid-cooled models).
Brake Fluid Specification:
DOT 4 or DOT 5.1 (check manual for specific system requirements).
Clutch Fluid Specification:
Mineral Oil (typically) for hydraulic clutches, or DOT fluid depending on system design (refer to manual).
Electrical Connections:
Potential for corrosion or loose connections in wiring harnesses, especially in older models or those exposed to moisture.
Fuel System Cleaning:
Carburetor jets can become clogged if the bike sits for extended periods without fuel stabilizer.
Suspension Seals:
Fork seals can wear over time, leading to oil leaks.
Desmo Service Importance:
Neglecting Desmodromic valve service can lead to significant engine damage and performance loss.
Brand Origin:
Italy, founded in Bologna in 1926.
Brand Specialization:
Performance motorcycles, known for L-twin engines, desmodromic valves, and trellis frames.
Monster Introduction:
The original Ducati Monster (M900) was introduced in 1993, revolutionizing the naked sportbike segment.
Monster 400 Placement:
The Monster 400 was a smaller displacement model, often targeted at entry-level riders or specific markets with licensing restrictions.
Monster 620 Placement:
The Monster 620 represented a mid-range offering in the Monster family, balancing performance and manageability.
Manufacturing Location:
Italy (Bologna)
Model Awards:
Ducati Monsters, in general, have been critically acclaimed for their styling, handling, and distinctive character, often winning 'naked bike of the year' awards in various publications during their production runs.
