The Kawasaki Drifter 800, with its distinctive Indian Chief-inspired styling, captured the hearts of many riders seeking a retro cruiser with modern reliability. However, like any motorcycle, the Drifter 800 isn’t without its quirks and potential problems. Understanding these issues can help prospective buyers make informed decisions and current owners maintain their bikes effectively, ensuring many more miles of enjoyable riding.

So, You're Thinking About a Drifter 800? Let's Talk Real Talk.

The Drifter 800 is a beautiful bike, no doubt. Its swooping fenders and teardrop tank evoke a classic era of motorcycling. But before you get too swept away by its looks, let's dive into some of the common challenges owners have faced. This isn't to scare you off, but rather to equip you with the knowledge to address any potential problems proactively.

The Dreaded Fuel Injection Gremlins

One of the most frequently discussed issues surrounding the Drifter 800 is its fuel injection system. While fuel injection generally offers superior performance and fuel economy compared to carburetors, the Drifter's system can be a bit finicky.

  • Symptoms: Owners often report rough idling, stalling, hesitation during acceleration, and poor fuel economy. These symptoms can be intermittent, making diagnosis even more challenging.
  • Possible Causes:
    • Throttle Position Sensor (TPS) Issues: The TPS tells the ECU (Engine Control Unit) the position of the throttle, which is crucial for proper fuel delivery. A faulty TPS can send incorrect signals, leading to the aforementioned symptoms.
    • Idle Air Control (IAC) Valve Problems: The IAC valve regulates the amount of air bypassing the throttle plate at idle. A dirty or malfunctioning IAC valve can cause rough idling or stalling, especially when the engine is cold.
    • Fuel Injector Clogging: Over time, fuel injectors can become clogged with deposits, restricting fuel flow. This can lead to lean running conditions and poor performance.
    • Vacuum Leaks: Vacuum leaks can disrupt the air/fuel mixture, causing a variety of running problems. Check all vacuum lines and intake boots for cracks or loose connections.
    • Fuel Pump Issues: A weak or failing fuel pump might not deliver adequate fuel pressure, especially at higher RPMs.
  • Solutions:
    • TPS Adjustment/Replacement: Check the TPS voltage with a multimeter and adjust it according to the service manual specifications. If adjustment doesn't solve the problem, consider replacing the TPS.
    • IAC Valve Cleaning/Replacement: Clean the IAC valve with carburetor cleaner. If cleaning doesn't help, replace the IAC valve.
    • Fuel Injector Cleaning: Use a fuel injector cleaner additive in your fuel tank. For more stubborn clogs, consider removing the injectors and having them professionally cleaned or replacing them.
    • Vacuum Leak Inspection and Repair: Carefully inspect all vacuum lines and intake boots for cracks or leaks. Replace any damaged components.
    • Fuel Pump Testing/Replacement: Use a fuel pressure gauge to test the fuel pump's output. If the pressure is below specifications, replace the fuel pump.

Electrical Quirks: When Things Go Dark (or Just Flicker)

The Drifter 800, like many older motorcycles, can experience electrical problems. These can range from minor annoyances to more serious issues that can leave you stranded.

  • Symptoms: Common electrical issues include intermittent lighting problems, a weak battery, charging system failures, and issues with the starter motor.
  • Possible Causes:
    • Loose Connections: Vibration can cause electrical connections to loosen over time, leading to intermittent problems.
    • Corroded Connections: Moisture and road salt can corrode electrical connections, increasing resistance and reducing current flow.
    • Faulty Wiring: Damaged or frayed wiring can cause shorts or open circuits.
    • Weak Battery: An old or poorly maintained battery can struggle to start the bike, especially in cold weather.
    • Charging System Failure: A faulty stator, regulator/rectifier, or wiring can prevent the battery from charging properly.
    • Starter Motor Issues: A worn starter motor or solenoid can fail to engage or crank the engine.
  • Solutions:
    • Inspect and Clean Connections: Carefully inspect all electrical connections for looseness or corrosion. Clean corroded connections with a wire brush and apply dielectric grease to prevent future corrosion.
    • Repair or Replace Damaged Wiring: Repair any damaged or frayed wiring with electrical tape or shrink tubing. Replace severely damaged wiring.
    • Battery Maintenance: Keep the battery terminals clean and tight. Use a battery tender to maintain the battery's charge when the bike is not in use. Replace the battery every few years.
    • Charging System Testing: Use a multimeter to test the stator's output and the regulator/rectifier's voltage. Replace any faulty components.
    • Starter Motor Repair/Replacement: If the starter motor is failing, consider having it rebuilt or replacing it.

The Clutch: Slipping Away

While not as prevalent as fuel injection issues, some Drifter 800 owners have reported problems with the clutch slipping, especially under heavy acceleration or when the engine is hot.

  • Symptoms: The engine revs up without a corresponding increase in speed. This is most noticeable in higher gears and under load.
  • Possible Causes:
    • Worn Clutch Plates: Over time, the friction material on the clutch plates wears down, reducing their ability to grip.
    • Weak Clutch Springs: The clutch springs provide the clamping force that holds the clutch plates together. Weak springs can allow the clutch to slip.
    • Incorrect Clutch Cable Adjustment: A too-tight clutch cable can prevent the clutch plates from fully engaging, leading to slippage.
    • Oil Contamination: Oil in the clutch assembly can reduce friction and cause slippage. This can be caused by using the wrong type of oil or by a leaking seal.
  • Solutions:
    • Clutch Cable Adjustment: Adjust the clutch cable according to the service manual specifications.
    • Clutch Plate Replacement: Replace the clutch plates with new ones. Consider using aftermarket clutch plates with improved friction material.
    • Clutch Spring Replacement: Replace the clutch springs with new ones. Consider using heavier-duty springs for improved clamping force.
    • Oil Change: Change the engine oil and filter. Make sure to use the correct type of oil specified in the owner's manual. Inspect the clutch assembly for oil contamination.

That Pesky Cam Chain Tensioner

The Drifter 800, like other motorcycles with similar engine designs, can experience issues with the cam chain tensioner.

  • Symptoms: A rattling or ticking noise from the engine, especially at idle or low speeds. The noise may disappear as the engine warms up.
  • Possible Causes:
    • Worn Cam Chain Tensioner: The cam chain tensioner is designed to maintain proper tension on the cam chain. Over time, the tensioner can wear down, allowing the cam chain to slacken and rattle.
    • Worn Cam Chain: The cam chain itself can stretch over time, requiring the tensioner to work harder to maintain proper tension.
  • Solutions:
    • Cam Chain Tensioner Replacement: Replace the cam chain tensioner with a new one. Consider using an aftermarket manual cam chain tensioner, which allows for more precise adjustment.
    • Cam Chain Replacement: If the cam chain is excessively worn, it may need to be replaced along with the tensioner. This is a more involved repair that requires disassembling the engine.

Keeping Cool: Overheating Concerns

While not a widespread issue, some Drifter 800 owners have reported concerns about the engine overheating, especially in hot weather or during slow-speed riding.

  • Symptoms: The engine temperature gauge reads high, the engine may run rough, and you may notice a burning smell.
  • Possible Causes:
    • Low Coolant Level: A low coolant level can reduce the engine's ability to dissipate heat.
    • Faulty Thermostat: A faulty thermostat can prevent the coolant from circulating properly.
    • Clogged Radiator: A clogged radiator can restrict coolant flow and reduce its cooling efficiency.
    • Faulty Cooling Fan: The cooling fan helps to dissipate heat when the bike is stationary or moving slowly. A faulty fan can cause the engine to overheat.
  • Solutions:
    • Check Coolant Level: Check the coolant level in the radiator and overflow tank. Add coolant as needed.
    • Thermostat Replacement: Replace the thermostat with a new one.
    • Radiator Cleaning: Flush the radiator with a radiator cleaner to remove any deposits.
    • Cooling Fan Inspection/Replacement: Inspect the cooling fan for damage. Replace the fan if it is not working properly.

Frequently Asked Questions (FAQ)

  • Why does my Drifter 800 stall at idle? A dirty IAC valve or a faulty TPS are common culprits. Cleaning the IAC valve or adjusting the TPS can often resolve the issue.
  • My battery keeps dying. What's going on? Check for loose or corroded connections, and test the charging system. A weak battery or a faulty regulator/rectifier are common causes.
  • Is the Drifter 800 reliable? Generally, yes, but like any older bike, it requires regular maintenance. Addressing common issues proactively can ensure long-term reliability.
  • Where can I find parts for my Drifter 800? Online retailers like eBay, Amazon, and aftermarket motorcycle parts suppliers are good sources. Kawasaki dealerships can also provide parts, though they may be more expensive.
  • What's the best oil to use in my Drifter 800? Consult your owner's manual for the recommended oil type and viscosity. Many owners prefer synthetic motorcycle oil for improved performance and protection.

The Ride Ahead

While the Kawasaki Drifter 800 has its share of potential problems, these are generally well-documented and can be addressed with proper maintenance and troubleshooting. Don't let these issues deter you from enjoying this unique and stylish cruiser. With a little knowledge and effort, you can keep your Drifter 800 running smoothly for years to come.