BMW K1200LT Motorcycle Repair: A Comprehensive Guide

BMW K1200LT Motorcycle Repair: A Comprehensive Guide

The BMW K1200LT is a powerful and luxurious touring motorcycle that has been a popular choice for riders for over a decade. However, like all vehicles, even the K1200LT is not immune to occasional repairs. This article provides a comprehensive guide to the most common repairs that K1200LT owners may encounter, along with tips on how to diagnose and fix them.

Electrical System

Battery failure: The K1200LT’s battery can fail due to age, corrosion, or a faulty charging system. Symptoms include difficulty starting the motorcycle, dim lights, and a dead battery. Repairs typically involve replacing the battery and cleaning the terminals.

Starter relay failure: The starter relay controls the flow of electricity to the starter motor. If the relay fails, the motorcycle will not start. Symptoms include no response when the start button is pressed and a clicking noise. Repairs involve replacing the relay.

Alternator failure: The alternator generates electricity to power the motorcycle’s electrical system and charge the battery. If the alternator fails, the battery will eventually discharge, and the motorcycle will stop running. Symptoms include dim lights, a flickering dashboard, and a low battery. Repairs typically involve replacing the alternator.

BMW K1200LT Motorcycle Repair: A Comprehensive Guide

Engine System

Oil leaks: The K1200LT’s engine can develop oil leaks from various seals and gaskets. Symptoms include visible oil drips or puddles under the motorcycle. Repairs involve cleaning the oil leak area and replacing the faulty seals or gaskets.

Valve adjustments: The K1200LT’s valves require regular adjustments to ensure proper engine performance. Symptoms of misadjusted valves include rough idling, poor fuel economy, and reduced power. Repairs involve using a feeler gauge to measure and adjust the valve clearances.

Spark plug failure: Spark plugs provide the ignition spark to the engine cylinders. If a spark plug fails, the engine will misfire or not run at all. Symptoms include rough idling, hesitation during acceleration, and reduced power. Repairs involve replacing the faulty spark plugs.

Suspension System

Fork seal leaks: The K1200LT’s fork seals can leak oil, which can affect the suspension’s performance. Symptoms include visible oil leaking from the fork tubes. Repairs involve replacing the fork seals.

Rear shock failure: The rear shock can fail due to wear or damage, resulting in poor handling and stability. Symptoms include a sagging rear end, excessive bouncing, and difficulty controlling the motorcycle on rough roads. Repairs typically involve replacing the rear shock.

Braking System

Brake pad wear: The K1200LT’s brake pads will wear down over time, reducing stopping power. Symptoms include a spongy brake feel, increased braking distance, and a squealing noise when braking. Repairs involve replacing the worn brake pads.

Brake rotor warping: The brake rotors can become warped due to heat or uneven wear. Symptoms include a pulsating feeling when braking. Repairs typically involve replacing the warped rotors.

Brake fluid contamination: Brake fluid can become contaminated over time, which can reduce braking performance. Symptoms include a spongy brake feel and decreased stopping power. Repairs involve flushing the brake fluid and replacing it with fresh fluid.

Diagnosis and Troubleshooting

Diagnosing and troubleshooting K1200LT repairs can be challenging, but there are several tools and techniques that can help:

  • Service manual: The BMW service manual provides detailed instructions and specifications for repairs.
  • Code reader: A code reader can be used to retrieve diagnostic trouble codes (DTCs) from the motorcycle’s computer. These codes can help identify the cause of a problem.
  • Multimeter: A multimeter can be used to measure voltage, resistance, and current to diagnose electrical problems.
  • Flashlight: A flashlight can be used to inspect for leaks, loose connections, and other potential problems.


While the BMW K1200LT is a reliable and well-built motorcycle, repairs are sometimes necessary. By understanding the most common repairs and following the tips in this guide, K1200LT owners can effectively diagnose and fix problems, ensuring that their motorcycles remain in top condition for years to come.