1991 Suzuki GS125 0.1L Petrol · H854 OBO

The most recent MOT on 11 May 2026 recorded a pass overall but issued a failure for head‑lamp aim being too high under regulation 4.1.2(a). Apart from that singular defect the test found no other faults, indicating that the motorcycle’s core systems were in acceptable condition at the time of inspection. The only other entry in the DVSA record dates back to July 2008, when the bike passed but an advisory noted the drive chain was slightly loose. The absence of recurring or progressive failures suggests a generally stable maintenance pattern, with the current issue limited to a simple alignment correction. With a recorded 27,872 miles on a 1991 model, the average annual distance works out to roughly 796 miles per year, which is markedly below the typical usage for a motorcycle of this vintage. Such low mileage often points to periods of infrequent riding or extended storage, both of which can conceal age‑related deterioration despite the modest wear figures. The limited mileage reduces the likelihood of wear‑related failures in the engine, gearbox and suspension, but it also raises the possibility of component ageing, such as rubber deterioration, corrosion from standing, and battery depletion, which are not reflected in the odometer reading. The head‑lamp aim failure is straightforward to remedy; a competent workshop can adjust the reflector and bulb positioning to bring the beam within the legal vertical and horizontal limits. While the adjustment itself is inexpensive, the underlying cause should be checked – a mis‑aligned headlamp can result from a bent mounting bracket, impact damage, or worn steering head bearings that allow the fork to shift under load. During a test ride, listen for any unusual steering feel or clunking when applying the brakes, which could indicate bearing play that might also affect lamp alignment. The 2008 advisory about a slightly loose drive chain warrants close inspection: verify that the chain tension falls within the manufacturer’s specified range, examine the sprockets for wear or hooked teeth, and confirm that the chain is adequately lubricated. A chain that is too slack can lead to accelerated wear, noisy operation, and, in extreme cases, loss of drive under load. Given the bike’s age and low usage, a thorough visual and tactile inspection is advisable before purchase. Check the tyre sidewalls for cracking, dry rot or hardening, as ageing rubber can fail even with low mileage; the tread should be even and the tyre pressure retainable. Inspect the steel frame, swingarm and exhaust for corrosion, especially in areas that may have been exposed to moisture during storage. The 12‑volt battery should be tested for cranking amps and checked for any leakage or swollen cells, as batteries deteriorate with time irrespective of use. Finally, verify that the coolant (if liquid‑cooled) and brake fluid have been replaced within the recommended intervals – typically every two years for brake fluid – and look for any signs of fluid leakage around the engine, forks and brake calipers. Addressing these time‑based items will help ensure that the motorcycle remains reliable and road‑worthy beyond the next MOT.