1999 Yamaha XJ900 0.9L Petrol · T81 KEF

A motorcycle of this vintage carrying only three recorded MOT tests since 2022, all of which returned a clean pass with no advisories or defects, presents an unusual but broadly reassuring roadworthiness profile. The most recent test on 8 August 2025 concluded with a pass and zero recorded defects, continuing a pattern established at the 6 August 2024 and 13 July 2022 examinations. The absence of advisory items across these tests is notable for a 1999 machine, where one would typically expect at least minor wear-related observations on suspension, brake components, or exhaust systems. The clean record could genuinely reflect sound mechanical condition, but equally it may indicate that the motorcycle is presenting in a relatively static state at the time of test, with components not yet worn to the threshold at which advisories are triggered. The jump from 2022 to 2024 and then to 2025 suggests the vehicle is being used or maintained on a roughly annual cycle, which is appropriate for a bike of this age. The recorded mileage of 11,588 miles across approximately 27 years equates to an average of around 429 miles per year, which is extremely low even for a motorcycle that may have been used as a weekend or fair-weather machine. The MOT records provided do not include odometer readings, so it is not possible to verify whether the mileage has accumulated steadily, in clusters, or has remained effectively static between tests. For a vehicle of this age and type, very low annual mileage raises specific mechanical considerations. The XJ900's inline four-cylinder engine, carburettors, fuel system, and associated rubber components are vulnerable to deterioration during periods of inactivity, including internal corrosion in the fuel tank, perished fuel lines, degraded vacuum hoses, gummed-up float bowls, and stale fuel residue in the carburettor circuits. Brake calipers, master cylinders, and clutch hydraulics can also seize or develop leaks after extended standing, and the swinging arm pivot, steering head bearings, and suspension linkages may have developed surface corrosion or stiff grease pockets if the motorcycle has not been ridden regularly. Given the absence of any flagged components in the MOT history, a prospective buyer should focus their inspection on areas most likely to suffer from age-related degradation rather than mileage-related wear. On a test ride, particular attention should be paid to the smoothness of the engine from cold, as a machine that has covered only a few hundred miles per year is far more likely to exhibit carburettor synchronisation issues, flat spots, or hesitation under throttle than one in regular use. Both front and rear brake applications should be tested for firmness and even pull, as seized caliper pistons or perished seals will manifest as a wooden lever, uneven braking, or the need to pump the lever. Suspension should be exercised over uneven surfaces, listening for clonks from the steering head or swinging arm pivots and checking that the forks and rear shocks move freely without binding. The fuel system warrants close inspection, including evidence of fresh fuel, condition of the tank internals if accessible, and any signs of fuel staining around the carburettor float bowls or fuel tap. Tyres, steering head bearings, drive chain, and sprockets should all be examined for age-related hardening, pitting, or corrosion rather than simply wear, and all electrical systems including lighting, indicators, and instruments should be verified as fully functional, as low usage combined with age frequently results in deteriorated connections and brittle insulation.