1986 Yamaha XT350 0.3L Petrol · C742 JYC

A long-term record of clean passes has been interrupted by the emergence of corrosion, marking a shift in the vehicle's mechanical trajectory. While the history shows a consistent trend of passing without defects from 2011 through 2021, the most recent test on 24 July 2025 introduced advisories for a slightly corroded front wheel spoke and a corroded rear wheel. This indicates that surface oxidation is now becoming a factor in the vehicle's roadworthiness after over a decade of defect-free certifications. The recorded mileage of 18,662 miles over approximately 40 years represents a very low annual average of roughly 467 miles. This usage profile is characterized by significant periods of inactivity, highlighted by a testing gap between 2012 and 2015 and a more substantial four-year hiatus between 2021 and 2025. Such a pattern of long-term standing often leads to the degradation of non-mechanical components and the onset of the oxidation currently noted on the wheels. Inspection should focus specifically on the wheel rims and spokes to assess the depth of the corrosion flagged in the 2025 assessment. A physical check for spoke tension and the presence of pitting on the rear wheel is necessary to ensure the structural integrity of the rims. During a test ride, the wheels should be monitored for any oscillation or roughness, and the wheel bearings should be checked for play, as external corrosion can sometimes be indicative of moisture ingress affecting internal components. Further attention is required for the braking system and suspension given the intermittent usage history. Check for binding calipers or a lack of responsiveness in the brake pedal, and listen for knocks or clicks from the suspension linkages when riding over uneven surfaces. Because the vehicle has spent extended periods off the road, all rubber seals, hoses, and boots should be examined for perishing, cracking, or leaks that may have developed during periods of stasis.