2004 Yamaha XJR1300 1.3L Petrol · WX04 BKV

A recurring pattern of exhaust gas leaks and consumable wear forms the primary mechanical narrative across eight recorded MOT tests spanning from 2013 to the most recent pass on 16 May 2025. While the machine has secured consecutive passes since rectifying a missing reflector failure back in June 2014, the exhaust system has demonstrated chronic vulnerability, with minor gas leaks flagged repeatedly in tests from 2014, 2022, 2023, and again in 2025. This persistent advisory indicates that the collector joints, downpipes, or silencer connections require careful physical inspection for corrosion or failed gaskets, as exhaust integrity on this large-displacement air-cooled engine is critical for smooth running and correct fuelling. Accumulating 50,435 miles over its twenty-two year lifespan yields an average of roughly 2,292 miles per year, representing a notably low usage profile for a machine of this class. The testing cadence reveals a significant multi-year hiatus between 2017 and 2022 where no MOT records exist, suggesting the motorcycle may have spent prolonged periods laid up in storage. Mechanically, such sporadic use often accelerates surface corrosion on exposed fasteners and exhaust headers while increasing the risk of fuel staling in the carburettors or fuel injection lines, making a thorough cold-start check essential during an inspection. When conducting a static inspection and road test, prospective buyers must scrutinize the specific items highlighted in the historical record. Listen closely during idle and acceleration for blowing noises or sputtering around the exhaust headers and collector box, which confirm the recurring gas leaks noted in recent tests. Furthermore, inspect the rear brake disc for the pitting and scoring recorded in 2023, feeling for any brake pulse or lack of bite through the rear lever, and check the front telescopic fork stanchions for any progression from the light misting previously logged in 2017 to active oil weeping past the seals. Drive chain tension and sprocket condition also warrant close attention given past advisories noting both overly tight and loose adjustments. Ensure the transmission takes up drive smoothly without excessive slack or mechanical noise from the final drive components. Checking the remaining tread depth and manufacture dates on both tyres is equally important, as historical records frequently flagged rubber worn close to the legal limit, which affects high-speed stability and cornering confidence on a heavy motorcycle.