Ducati Monster 659 Problems

The Ducati Monster 659 is a lightweight naked motorcycle, widely admired for its Italian styling, responsive handling, and beginner-friendly performance. Despite its strengths, owners often report recurring issues that can affect reliability and riding comfort. Understanding these problems—along with their symptoms, causes, and solutions—helps riders keep their Ducati Monster 659 running smoothly.

Below are the Ducati Monster 659 problems, each explained in a professional and detailed manner.

1. Starting Issues

A frequent complaint among Monster 659 riders is difficulty starting the bike, especially in cold conditions or after long storage.

Symptoms:

• The engine cranks but doesn’t fire.
• Clicking noise from the starter relay.
• Battery drains quickly.
• Inconsistent ignition spark.
• Requires multiple attempts to start.

Causes:

• Weak or old battery.
• Faulty starter motor.
• Corroded or loose wiring connections.
• Defective ignition coil.
• Poor fuel delivery.

Fixes:

• Replace the battery with OEM-spec lithium or lead-acid.
• Service or replace the starter motor.
• Clean and tighten electrical connections.
• Test and replace the ignition coil if faulty.
• Ensure fuel injectors and the pump are clean and functional.

2. Overheating Problems

The Ducati Monster 659 can run hot, particularly in city traffic or during summer rides.

Symptoms:

• The temperature gauge reading is above normal.
• Cooling fan runs constantly.
• The engine loses power under heat stress.
• Unusual ticking or knocking noise.
• Coolant overflow or leakage.

Causes:

• Low coolant level.
• Clogged radiator or cooling fins.
• Faulty thermostat.
• Weak water pump performance.
• Poor airflow in congested conditions.

Fixes:

• Top up with recommended coolant.
• Clean or replace the radiator.
• Install a new thermostat if malfunctioning.
• Inspect and service the water pump.
• Use quality engine oil to improve cooling efficiency.

3. Clutch Slippage

Clutch-related issues are another common concern, especially in higher-mileage Monster 659s.

Symptoms:

• Loss of power transfer.
• High engine RPM without matching acceleration.
• Burning smell during gear shifts.
• Difficulty engaging gears.
• Jerky ride in traffic.

Causes:

• Worn clutch plates.
• Weak clutch springs.
• Incorrect clutch cable adjustment.
• Oil contamination on clutch surfaces.
• Aggressive riding style.

Fixes:

• Replace clutch plates with OEM parts.
• Install new clutch springs.
• Adjust the clutch cable for correct free play.
• Use high-quality motorcycle oil.
• Adopt smoother riding techniques.

4. Chain and Sprocket Wear

The drive system of the Ducati Monster 659 often suffers from chain stretching and sprocket wear.

Symptoms:

• Chain noise and rattling.
• Visible wear on sprocket teeth.
• Chain slack increases quickly.
• Jerky acceleration.
• Metallic grinding sound.

Causes:

• Poor chain lubrication.
• Misaligned chain.
• Aggressive riding with frequent wheelies.
• Low-quality aftermarket parts.
• Lack of regular inspection.

Fixes:

• Lubricate the chain every 500–700 km.
• Realign and tension the chain properly.
• Replace worn sprockets and chain as a set.
• Use premium O-ring or X-ring chains.
• Perform routine maintenance checks.

5. Electrical Failures

Some Monster 659 owners face intermittent electrical faults affecting lights and electronics.

Symptoms:

• Flickering headlights.
• Dashboard malfunctions.
• Battery drains overnight.
• Non-functional indicators.
• Fuses blowing frequently.

Causes:

• Weak regulator/rectifier.
• Loose wiring harness.
• Short circuits due to water entry.
• Faulty alternator.
• Aging battery.

Fixes:

• Replace the regulator/rectifier with an upgraded unit.
• Inspect and secure the wiring harness.
• Use dielectric grease to protect connectors.
• Test and replace the alternator if needed.
• Install a fresh, reliable battery.

6. Suspension Stiffness

The suspension setup can feel stiff, reducing comfort on uneven roads.

Symptoms:

• Harsh ride quality.
• Excessive vibration over bumps.
• Reduced cornering confidence.
• Uneven tire wear.
• Suspension squeaks or knocks

Causes:

• Factory suspension settings are too firm.
• Lack of preload adjustment.
• Low-quality suspension oil.
• Worn fork seals.
• Incorrect rider weight balance.

Fixes:

• Adjust suspension settings to the softer mode.
• Refill or replace suspension oil.
• Change fork seals if leaking.
• Upgrade to aftermarket suspension components.
• Balance suspension for the rider’s weight.

7. Braking Problems

Some riders report inconsistent braking performance on the Monster 659.

Symptoms:

• Spongy brake lever feel.
• Squeaking or grinding noises.
• Longer stopping distance.
• The brake fades under heavy use.
• Uneven brake pad wear.

Causes:

• Worn brake pads.
• Air bubbles in brake fluid.
• Contaminated rotors.
• Low-quality aftermarket pads.
• Poor brake line condition.

Fixes:

• Replace brake pads with OEM parts.
• Bleed the braking system to remove air.
• Clean or replace brake rotors.
• Use high-performance brake pads.
• Upgrade to stainless steel brake lines.

8. Fuel System Issues

Fuel delivery inconsistencies can affect performance and throttle response.

Symptoms:

• Engine misfires.
• Loss of power during acceleration.
• Rough idling.
• Poor fuel efficiency.
• Fuel smell from exhaust.

Causes:

• Dirty fuel injectors.
• Clogged fuel filter.
• Weak fuel pump.
• Contaminated fuel.
• Faulty ECU mapping.

Fixes:

• Clean or replace injectors.
• Install a new fuel filter.
• Test and replace the fuel pump if required.
• Always use clean, premium-grade fuel.
• Reflash the ECU with updated maps.

9. Exhaust Noise and Vibration

Owners often notice excessive exhaust vibration and abnormal noise.

Symptoms:

• Loud rattling from the exhaust.
• Strong vibrations felt on footpegs.
• Loss of exhaust note clarity.
• Exhaust leaks.
• Reduced performance.

Causes:

• Loose exhaust clamps.
• Cracked exhaust pipes.
• Worn exhaust gaskets.
• Poor aftermarket exhaust fitting.
• Engine misfiring.

Fixes:

• Tighten or replace exhaust clamps.
• Repair or replace cracked pipes.
• Change worn gaskets.
• Ensure proper fitting of aftermarket exhaust.
• Service the engine to prevent misfires.

Ducati Monster 659 Specifications (2025 Updated)

Category	Details
Model	Ducati Monster 659
Engine Type	659cc L-Twin, Desmodromic, 2-valve, air-cooled
Bore x Stroke	88 mm x 57.2 mm
Power Output	~50 hp @ 8,250 rpm (restricted for LAMS compliance)
Torque	~42 Nm @ 6,000 rpm
Transmission	6-speed gearbox with wet multi-plate clutch
Fuel System	Electronic fuel injection, 45 mm throttle body
Frame	Tubular steel Trellis frame
Front Suspension	43 mm upside-down telescopic fork
Rear Suspension	Adjustable monoshock
Front Brake	Twin 320 mm discs, 4-piston Brembo calipers
Rear Brake	245 mm disc, 2-piston caliper
ABS	Bosch ABS (standard)
Front Tire	120/60 ZR17
Rear Tire	160/60 ZR17
Wheelbase	1,450 mm
Seat Height	785 mm
Fuel Tank Capacity	15 liters
Kerb Weight	~185 kg
Top Speed	~170 km/h (restricted)
Category	Naked bike / LAMS-approved learner motorcycle

Frequently Asked Questions (FAQs)

1. Is the Ducati Monster 659 a reliable motorcycle?

Yes, the Ducati Monster 659 is generally reliable, especially for city commuting and light touring. However, like any motorcycle, it has some common issues such as electrical faults, clutch wear, and suspension concerns.

2. How often should I service my Ducati Monster 659?

Ducati recommends servicing the Monster 659 every 12,000 km or 12 months, whichever comes first. Regular oil changes, valve clearance checks, and chain maintenance are essential.

3. Does the Ducati Monster 659 have high maintenance costs?

Compared to Japanese motorcycles, the Ducati Monster 659 has slightly higher maintenance costs due to premium parts and specialized servicing. However, proper care can reduce long-term expenses.

4. Can beginners ride the Ducati Monster 659?

Yes, the Monster 659 is designed with entry-level riders in mind, especially in markets like Australia, where it complies with LAMS (Learner Approved Motorcycle Scheme). It offers manageable power and rider-friendly ergonomics.

5. What is the top speed of the Ducati Monster 659?

The Ducati Monster 659 can reach a top speed of around 200 km/h (124 mph), making it suitable for both city riding and highway cruising.

6. What is the fuel economy of the Ducati Monster 659?

On average, the Monster 659 delivers 20–22 km/l (47–52 mpg) depending on riding style and road conditions.

7. What are the most common problems faced by Ducati Monster 659 owners?

The most reported issues include battery drain, clutch wear, vibration, chain slack, overheating, and electrical faults.

8. How long does the clutch last on a Ducati Monster 659?

With regular maintenance and smooth riding, the clutch can last 20,000–30,000 km, but aggressive riding may shorten its lifespan.

9. Is the Ducati Monster 659 good for long rides?

While primarily designed as a naked street bike, the Monster 659 can handle short touring trips. However, its riding position and limited wind protection may cause fatigue on longer journeys.

10. Should I buy a used Ducati Monster 659?

Yes, buying a used Ducati Monster 659 can be a good choice if the motorcycle has a complete service history, no major modifications, and well-maintained parts. Always inspect the clutch, suspension, and electrical system before purchase.

Rider Reviews and Feedback on Ducati Monster 659

Rider Interview 1 – Alex, 27, Sydney

Q: What made you choose the Ducati Monster 659?
A: I wanted a learner-approved bike that still had Ducati’s DNA. The Monster 659 was perfect—it looks aggressive but is manageable for beginners.

Q: How has your riding experience been so far?
A: It’s light, easy to maneuver in traffic, and gives me confidence on twisty roads. I like the upright seating and the smooth clutch, which makes city rides less tiring.

Q: Any problems you’ve faced?
A: The seat feels a bit firm after long rides, and the mirrors vibrate at higher speeds. Otherwise, it’s been reliable.

Q: Would you recommend it?
A: Absolutely for learners and commuters—it’s stylish, safe, and not intimidating.

Rider Interview 2 – Sarah, 32, Melbourne

Q: What do you like most about the Ducati Monster 659?
A: The design is the biggest highlight. It doesn’t feel like a “beginner bike”—people always compliment its sporty look.

Q: How does it perform on daily rides?
A: Very smooth in the city, light clutch action, and low seat height, which is great for riders who aren’t very tall.

Q: Have you noticed any issues?
A: The suspension is a bit stiff, especially on bumpy roads. Also, it heats up in traffic, which can be uncomfortable in summer.

Q: Would you keep it long-term?
A: Yes, though I might upgrade to a bigger Monster later. For now, it’s the best learner bike I could’ve chosen.

Rider Interview 3 – Liam, 25, Brisbane

Q: How does the Ducati Monster 659 compare to other LAMS bikes?
A: It feels more premium and refined compared to Japanese LAMS options. It has better handling and brakes, plus the Ducati badge is always special.

Q: Any challenges so far?
A: Maintenance is a little more expensive compared to Kawasaki or Yamaha. Also, the range isn’t huge if you ride long distances.

Q: Overall verdict?
A: It’s a fantastic entry into Ducati ownership—ideal for someone who wants style, safety, and confidence while learning.

Ducati Monster 659 Comparison with Other Bikes

The Ducati Monster 659 is a motorcycle that blends Italian style with a learner-friendly performance profile. Designed as an entry point into Ducati’s famous Monster family, it carries the raw character of a V-twin while maintaining manageable power for newer riders. When compared to other bikes in the same middleweight segment, the 659 shows strengths in styling, handling, and brand heritage, while facing stiff competition from Japanese and European rivals.

Against the Yamaha FZ6R, the Monster feels sharper and more connected to the road. The Yamaha leans toward comfort and smoothness, making it a great everyday machine, but it lacks the aggressive personality that Ducati injects into the Monster. Riders who want easy commuting may prefer the Yamaha, while those seeking more excitement and sharper brakes will gravitate toward the Ducati.

In comparison to the Kawasaki Ninja 650, the differences are more about performance versus feel. The Kawasaki provides more horsepower and torque, which gives it stronger acceleration on highways. However, the Ducati responds with better braking performance, firmer suspension, and that unique V-twin exhaust note that Japanese parallel twins simply cannot replicate. The choice comes down to whether a rider values outright speed or engaging character.

The Ducati Monster 696, a close relative, naturally outperforms the 659 in raw numbers. With higher horsepower and torque, the 696 feels more muscular, yet the 659 remains more approachable for riders who do not want overwhelming power. Both share Ducati’s trellis frame and signature styling, but the 659 is often seen as the more forgiving sibling, especially in urban riding conditions.

When set against the Triumph Street Triple 660, the Monster meets a rival that emphasizes agility and technology. Triumph’s three-cylinder engine is smoother and revs higher, while the Ducati keeps its low-to-mid-range grunt. Both bikes offer modern electronics, but the Monster places more focus on Ducati-specific features like traction control and riding modes, while Triumph highlights connectivity and lightweight handling.

The Aprilia RS 660 belongs to a different category with its sportbike focus, but comparisons still matter for riders looking at engine size. The Aprilia delivers more outright performance and higher revs, but the Monster is easier to live with daily, thanks to its upright seating position and neutral ergonomics. Similarly, the Aprilia Tuareg 660 takes the same engine into the adventure category, which makes it more versatile off-road but less stylish and compact than the Ducati.

Riders also cross-shop the Monster 659 with the Yamaha MT-07 and Kawasaki Z650, two of the most popular middleweight nakeds. Both Japanese options provide excellent value, lighter weight, and lively engines. However, the Ducati stands apart with its Italian styling, trellis frame design, and the prestige of wearing the Monster badge.

In conclusion, the Ducati Monster 659 is not always the fastest or the most affordable in its class, but it delivers something many competitors cannot — soul, character, and the authentic Ducati feel in a package that remains manageable for everyday riders. For those who want a motorcycle that balances approachability with Italian flair, the Monster 659 remains a unique and rewarding choice.

Ducati Monster 659 vs Rivals – Specifications

The comparison shows that the Ducati Monster 659 is not the most powerful in its class, but it offers a balanced package with approachable performance, lower seat height, and Ducati’s trademark styling. The Yamaha MT-07 and Kawasaki Z650 stand out for their affordability and stronger torque delivery, making them excellent value choices. Triumph’s Street Triple 660 delivers more refinement and high-rev excitement, while the Aprilia RS 660 pushes the performance envelope with sportbike power and lightweight agility. This positions the Monster 659 as a stylish, premium entry-level option for riders who prioritize character and Italian design over outright horsepower.

Specification	Ducati Monster 659	Yamaha MT-07	Kawasaki Z650	Triumph Street Triple 660	Aprilia RS 660
Engine Type	659 cc, L-Twin, air-cooled	689 cc, Parallel Twin, liquid-cooled	649 cc, Parallel Twin, liquid-cooled	660 cc, Inline-3, liquid-cooled	659 cc, Parallel Twin, liquid-cooled
Power	~52 hp @ 8,250 rpm	~74 hp @ 9,000 rpm	~67 hp @ 8,000 rpm	~81 hp @ 10,250 rpm	~100 hp @ 10,500 rpm
Torque	~47 Nm @ 7,500 rpm	~68 Nm @ 6,500 rpm	~64 Nm @ 6,700 rpm	~64 Nm @ 6,250 rpm	~67 Nm @ 8,500 rpm
Weight (Wet)	~186 kg (410 lbs)	~184 kg (406 lbs)	~188 kg (414 lbs)	~189 kg (417 lbs)	~183 kg (403 lbs)
Frame	Steel trellis frame	Diamond-type frame	Tubular steel frame	Aluminum twin-spar frame	Aluminum frame
Suspension (Front/Rear)	43 mm USD fork / Sachs monoshock	41 mm fork / Monoshock	41 mm fork / Horizontal back-link	41 mm USD fork / Monoshock	41 mm USD fork / Adjustable monoshock
Brakes (Front/Rear)	320 mm dual discs / 245 mm disc, Brembo calipers	Dual discs / Single disc	Dual discs / Single disc	Dual discs / Single disc	Dual discs / Single disc
Seat Height	770 mm	805 mm	790 mm	810 mm	820 mm
Fuel Tank Capacity	15 L	14 L	15 L	17.4 L	15 L
Price Range (approx.)	Mid-range premium	Affordable	Affordable	Mid-range premium	Higher premium

Final Thoughts

The Ducati Monster 659 is a stylish, entry-level naked bike, but like all motorcycles, it has certain recurring issues. From electrical faults and clutch wear to chain problems and overheating, these challenges are manageable with proper maintenance and timely fixes. By addressing symptoms early, riders can avoid expensive repairs and enjoy the Monster 659’s sporty performance and Italian design for years to come.