The Kawasaki W800, a modern classic, evokes a bygone era with its retro styling and smooth, parallel-twin engine. It's a bike that appeals to riders seeking a blend of vintage aesthetics and modern reliability. However, like any machine, the W800 isn't entirely without its quirks. Understanding these potential issues can help you make an informed purchase, maintain your W800 effectively, and keep it running smoothly for years to come.

Let's dive into some of the common problems W800 owners have encountered, offering insights and potential solutions to keep you on the road.

Is the W800 a Reliable Ride?

Before we delve into specific issues, it's important to establish the W800's overall reputation. Generally, the W800 is considered a reliable motorcycle. Its simple, air-cooled engine and relatively straightforward design contribute to its robustness. However, some common issues do arise, primarily centered around a few specific areas. Addressing these proactively can minimize headaches down the road.

1. Fueling Foibles: Hesitation and Stalling

One of the most frequently reported issues with the W800, particularly the earlier models (pre-2019), is related to fueling. This often manifests as hesitation during acceleration, especially from a standstill or low speeds. Some owners have also experienced stalling, particularly when the engine is cold.

  • The Culprit: The lean factory fuel mapping is often to blame. Kawasaki, in an effort to meet emissions regulations, sometimes tunes the engine to run on the lean side. This can lead to a lack of fuel at certain RPMs, causing the hesitation and stalling.
  • The Fixes: Several solutions exist:
    • ECU Remapping: This is often the most effective solution. A qualified mechanic can remap the ECU (Engine Control Unit) to provide a richer fuel mixture, eliminating the lean spots.
    • Fuel Controller: Devices like the Dynojet Power Commander allow you to adjust the fuel mapping without permanently altering the ECU. They can be a good option for those who want more control over the fueling.
    • Throttle Body Synchronization: Ensuring the throttle bodies are properly synchronized can also improve throttle response and reduce hesitation.
    • Air Filter: Ensure the air filter is clean and properly oiled (if it's an oiled type). A dirty air filter can restrict airflow and exacerbate lean running conditions.
    • Spark Plugs: Inspect and replace spark plugs if they are fouled or worn.

2. Clutch Concerns: Drag and Engagement Issues

Another area where some W800 owners have reported problems is with the clutch. This can include clutch drag (where the clutch doesn't fully disengage, making shifting difficult) or inconsistent clutch engagement.

  • The Culprits: Several factors can contribute to clutch problems:

    • Clutch Cable Adjustment: The clutch cable may be improperly adjusted, leading to insufficient clutch disengagement.
    • Warped Clutch Plates: Over time, the clutch plates can warp due to heat and friction, causing drag.
    • Incorrect Oil: Using the wrong type of oil can affect clutch performance. Ensure you're using oil that meets Kawasaki's specifications, including JASO MA or MA2 rating.
    • Clutch Basket Grooving: Not as common, but the clutch basket can develop grooves over time, which can cause the clutch plates to bind.

  • The Fixes:

    • Clutch Cable Adjustment: Adjust the clutch cable according to the manufacturer's specifications. This is often the first and easiest fix.
    • Clutch Plate Replacement: If the clutch plates are warped, they will need to be replaced.
    • Oil Change: Ensure you're using the correct type of oil. A fresh oil change can sometimes resolve minor clutch issues.
    • Clutch Basket Filing/Replacement: If the clutch basket is grooved, you may be able to file down the grooves. However, in severe cases, the basket may need to be replaced.

3. The Dreaded "Clicking" Noise: Valve Train Adjustments

Some W800 owners have reported a noticeable "clicking" noise coming from the engine, particularly at idle or low speeds. This is often related to the valve train.

  • The Culprit: The W800 uses a shim-under-bucket valve system. Over time, the valve clearances can drift out of specification, leading to excessive clearance and the clicking noise.
  • The Fix:
    • Valve Clearance Adjustment: This is the most common solution. A mechanic will need to check and adjust the valve clearances by replacing shims of the appropriate thickness. This should be done according to the manufacturer's recommended service intervals.

4. Electrical Gremlins: Sensor Issues and Wiring Problems

While the W800's electrical system is generally reliable, some owners have encountered occasional electrical issues, particularly with sensors or wiring.

  • The Culprits:

    • Sensor Malfunctions: Sensors like the crankshaft position sensor or the throttle position sensor can sometimes fail, leading to engine problems or warning lights.
    • Loose Connections: Vibrations can cause electrical connections to loosen over time, leading to intermittent problems.
    • Wiring Damage: Damaged wiring, particularly in exposed areas, can cause shorts or other electrical faults.

  • The Fixes:

    • Sensor Replacement: If a sensor is faulty, it will need to be replaced.
    • Connection Inspection: Regularly inspect electrical connections for looseness or corrosion. Clean and tighten any suspect connections.
    • Wiring Repair: Repair or replace any damaged wiring. Use proper wiring techniques to ensure a secure and reliable connection.

5. Rust and Corrosion: A Battle Against the Elements

Like any motorcycle, the W800 is susceptible to rust and corrosion, especially if it's ridden in wet or salty conditions.

  • The Culprits: Exposure to moisture, salt, and other corrosive elements can lead to rust on various parts of the bike, including the frame, exhaust, and fasteners.
  • The Fixes:
    • Regular Cleaning: Regularly wash and dry your W800 to remove dirt, salt, and other contaminants.
    • Protective Coatings: Apply protective coatings, such as rust inhibitors or waxes, to vulnerable areas.
    • Storage: Store your W800 indoors, if possible, to protect it from the elements.
    • Anti-Corrosion Sprays: Use anti-corrosion sprays on exposed metal parts, especially after riding in wet conditions.

6. Weak Battery: Starting Struggles

Some W800 owners have reported issues with weak batteries, leading to starting problems, especially in cold weather.

  • The Culprit: The W800's charging system might struggle to keep up with the electrical demands, especially if the bike is used for short trips or if accessories are added.
  • The Fixes:
    • Battery Maintenance: Regularly check the battery's voltage and charge it as needed.
    • Battery Replacement: If the battery is old or weak, replace it with a new one. Consider a higher-capacity battery for improved starting performance.
    • Charging System Inspection: Have the charging system inspected to ensure it's functioning properly.

7. Soft Suspension: A Comfortable but Limited Ride

The W800's suspension is often described as "soft" and comfortable, which is great for leisurely rides. However, it can feel inadequate when pushed hard or when carrying a passenger.

  • The Culprit: The factory suspension is designed for comfort rather than performance. The damping and spring rates are relatively soft, which can lead to excessive dive under braking or wallowing in corners.
  • The Fixes:
    • Fork Spring Upgrade: Replacing the fork springs with stiffer ones can improve front-end stability and reduce dive.
    • Fork Oil Change: Using a heavier weight fork oil can increase damping and improve handling.
    • Rear Shock Replacement: Replacing the rear shocks with aftermarket units that offer adjustable damping and spring preload can significantly improve the bike's handling and ride quality.

Frequently Asked Questions

  • Is the W800 a good beginner bike? While manageable, the W800's weight and retro handling characteristics may not be ideal for absolute beginners. Experienced riders transitioning from smaller bikes will find it more appealing.

  • How often should I change the oil on my W800? Kawasaki recommends an oil change every 6,000 miles (10,000 km) or every year, whichever comes first. However, some riders prefer to change it more frequently, especially if they ride in dusty or harsh conditions.

  • What type of oil should I use in my W800? Use a high-quality motorcycle oil that meets JASO MA or MA2 specifications. A 10W-40 or 10W-50 oil is typically recommended.

  • How often should I adjust the valves on my W800? Kawasaki recommends checking the valve clearances every 15,000 miles (24,000 km). It's crucial to adhere to this schedule to prevent engine damage.

  • Does the W800 have ABS? ABS (Anti-lock Braking System) was introduced on some W800 models starting in 2019. Earlier models did not have ABS.

Conclusion

The Kawasaki W800 is a charming motorcycle with a timeless appeal. While it may have a few common problems, understanding these potential issues and taking proactive steps to address them can ensure a long and enjoyable ownership experience. By keeping on top of maintenance and addressing any concerns promptly, you can keep your W800 running smoothly and reliably for many years to come.