1990 Honda C90 0.1L Petrol · G421 BJB

With only a single minor lighting defect recorded against eight MOT tests over the past eleven years, this Honda C90 presents an unusually clean roadworthiness profile for a 36-year-old machine. The sole failure, recorded on 10 July 2015 for a headlamp not illuminating on dipped beam, was clearly rectified on the very same date, as a pass was issued immediately afterward. Subsequent annual or biennial tests in 2018, 2020, 2022, 2023, 2024 and 2025 have all returned clean results with no advisories, no corrosion notes and no component wear flagged. For a vehicle of this vintage, such an unbroken run of defect-free tests is notable and indicates that the structural, lighting, braking and exhaust systems have remained compliant under inspection throughout the recorded period. The recorded odometer reading of 4,448 miles against an age of approximately 36 years equates to an average accumulation of roughly 124 miles per year, which is exceptionally low for any motor vehicle. The MOT history shows testing gaps, particularly the long stretch between 2015 and 2018 where no test was recorded, which is consistent with a machine that has seen irregular or seasonal use rather than daily operation. Low annual mileage of this nature means that wear-related items such as brake pads, drive components and tyres will degrade more through age-related deterioration than through frictional use. Standing periods can also introduce their own issues, including internal corrosion in the fuel system, hardening of rubber mounts and seals, and drying of lubricant films on bearings and pivot points, even when annual mileage remains minimal. For a prospective buyer, the most sensible inspection priorities on this particular machine are the components most likely to suffer from prolonged standing rather than those highlighted by the MOT record itself. On a test ride, listen for any clonking or rattle from the rear suspension area, as the shock absorber and its mounting bushes can stiffen and perish with age even at low mileage. Check that the front brake lever and rear brake pedal both produce firm resistance without sponginess, as old brake fluid or seized caliper pistons are common on lightly used small-capacity machines. Inspect the tyres carefully for sidewall cracking or flat-spotted tread, which is typical of vehicles that stand for extended periods, and verify that the tyres themselves are within the legal tread depth and date-coded within an acceptable service life. Confirm that the headlamp, tail lamp, dip beam and horn all function correctly, given that the only recorded MOT failure in the history relates to dipped-beam illumination. Mechanically, the engine should be evaluated for ease of starting from cold, stable tickover, and the absence of excessive smoke from the exhaust, as carburettor internals can oxidise and fuel residues can gum jets when a motorcycle stands unused for long intervals. Lift the side cover or seat and inspect the drive chain for surface rust, tight links and adequate tension, applying lubricant and observing whether it flexes freely. Examine the frame, swinging arm and rear subframe mounting points for any bubbling paintwork or surface corrosion, particularly around the battery compartment, which is a known corrosion hotspot on older C90 models. Finally, check that all electrical functions including indicators, brake light switch and speedometer illumination operate correctly, as aged connectors and brittle insulation are frequent age-related concerns even on machines with otherwise clean MOT records.