1976 Yamaha XS650 0.7L Petrol · MDX 451P

The most recent DVSA MOT, carried out on 15 August 2022, recorded a full pass with no defects noted. With only a single MOT entry available, the absence of any recorded failures or advisories suggests that the motorcycle has either been maintained to a satisfactory standard or has not been subjected to rigorous testing in recent years; there is no evidence of a deteriorating trend, but the limited data also precludes a definitive assessment of long‑term reliability. The recorded mileage of zero miles for a machine first registered in 1976 is clearly anomalous and indicates that the odometer reading has not been logged rather than reflecting actual use. Even allowing for a very low annual utilisation, a vintage motorcycle of this age is expected to have accumulated a modest figure, typically in the range of a few thousand miles if it has been ridden occasionally, or considerably more if it has seen regular road use. An unrealistically low figure can mask hidden wear on consumables such as tyre tread, brake pads, clutch plates and engine seals, all of which degrade with time as well as distance. Consequently, the buyer should treat the mileage as unknown and focus on age‑related deterioration rather than mileage‑related wear. Given the age of the XS650 and the lack of recent recorded service, a thorough visual and tactile inspection is essential. Examine the tyre sidewalls for cracking, dry rot or hardening of the rubber, and verify that the tread depth meets legal limits; older tyres often become brittle even if they have not been ridden. Inspect the fuel tank, carburettor jets and intake manifolds for corrosion, varnish or stale fuel residues, and check that the spark plugs are clean and correctly gapped. The battery, if fitted, should be tested for cranking voltage and electrolyte condition, as lead‑acid cells deteriorate quickly when left idle for extended periods. Look for rust on the frame, swingarm pivot points and exhaust, and ensure that the chain has been lubricated, correctly tensioned and that the sprockets are free from hooked teeth. When taking the machine for a short ride, listen for any irregularities such as a loose clutch lever, gearbox grinding, or abnormal engine vibration that could indicate worn bearings or mis‑adjusted valve clearances. Observe throttle response for hesitation or flat spots, which may point to clogged carburettor passages or ignition timing issues. Test the brakes for consistent pedal feel and absence of judder, noting any pulsation that could reveal warped discs or seized caliper pistons. Finally, arrange a comprehensive service that includes changing the engine oil, cleaning or replacing the fuel filter, checking the coolant (if a liquid‑cooled variant), and renewing the brake fluid, as these fluids degrade with age regardless of mileage and are critical to safe operation.