2006 Yamaha XT660R 0.7L Petrol · NX06 NJN

The most recent MOT test for the 2006 Yamaha XT660R was conducted on 2023-05-20, resulting in a passing outcome with a single advisory—front tyre slightly perished—which indicates the tyres are approaching the end of their useful life but remain within legal limits. While the vehicle has not failed an MOT since 2020, the failure in 2020-07-31 highlights a critical issue that must be addressed: the central rear tyre had insufficient tread visibility, a dangerous condition that would have posed significant traction and braking risks. The subsequent MOTs show a pattern of recurring advisories related to brake pads and rear wheel bearings, suggesting that while the vehicle has maintained roadworthiness, these components are nearing or past their operational limits. The overall maintenance trend appears stable but requires vigilance, particularly regarding brake wear and wheel bearing integrity, to prevent future failures. The recorded mileage of 23,660 miles for a vehicle aged approximately 20 years is unusually low, reflecting an annual usage rate of around 1,183 miles—far below the typical wear rates expected for a motorcycle of this era. Such low mileage often correlates with periods of prolonged inactivity, which can exacerbate issues such as corrosion, fluid degradation, and component stiffness. For example, standing for extended periods can lead to brake disc corrosion, binding calipers, or fluid separation in hydraulic systems, while tyres may develop sidewall perishing or cracks due to age-related deterioration rather than mechanical wear. Additionally, infrequent use can accelerate wear on suspension elements like bushes and springs, as they may not be cycled regularly enough to maintain their elasticity and damping properties. Given the vehicle’s age and the recurring advisories in the MOT history, the prospective buyer should conduct a thorough inspection focusing on the brake system, wheel bearings, and tyre condition. During a test drive, listen for unusual noises such as grinding from brake pads nearing minimum limits, clunking from worn suspension bushes, or whining from a failing wheel bearing. Inspect the rear wheel bearings for excessive play, which could indicate impending failure and risk of wheel detachment. The front brake pads should be checked for even wear and signs of glazing, while the rear brake pads should be examined for consistent thickness. The central rear tyre, which failed the 2020 MOT, must be replaced immediately to restore safe grip, particularly if the vehicle is used for off-road or high-speed riding. Additionally, verify that the brake discs are free from corrosion or binding, as standing corrosion can compromise braking performance and lead to uneven wear or shuddering when braking. For practical checks beyond the MOT advisories, the buyer should examine the tyres for sidewall perishing or cracks, which can compromise structural integrity and lead to blowouts. Given the low annual mileage, check for signs of standing corrosion on the frame, exhaust system, and wheel components, as prolonged exposure to moisture can accelerate rusting. Inspect the 12V battery for voltage output and overall health, as low usage can lead to sulphation or terminal corrosion. Fluid levels, including brake fluid, coolant, and engine oil, should be checked for contamination or separation, as these can degrade over time even with minimal use. Finally, verify that the service book records reflect any scheduled maintenance, particularly for suspension components, exhaust emissions systems, and electrical connections, to ensure the vehicle remains in optimal condition for its age and intended use.