2004 Yamaha YZF R1 04 1.0L Petrol · YK04 ABG

The most recent MOT, carried out on 27 May 2023, was passed with no recorded defects, and the preceding test in May 2022 was similarly clean. Earlier examinations show a gradual reduction in advisory items: the 2014 failure for rear‑tyre tread and the 2014 advisory on rear‑wheel bearing play were followed by a 2016 advisory on tyre wear and exhaust noise, then a 2021 advisory on a slightly loose drive chain. Since 2018 the record has been free of failures and, apart from the 2021 chain note, no further advisories have been logged, indicating an overall stabilising and improving maintenance trend in recent years. With a recorded 30,047 miles on a 2004 model, the average annual mileage works out at roughly 1,350 mi per year, well below the typical UK rider’s usage. Such low utilisation often points to periods of prolonged storage or very light riding, which can be as consequential as high mileage. Age‑related wear on rubber components, seals and electrical parts may have progressed despite the modest distance, and any long idle periods can promote battery sulphation, fuel system varnish and corrosion of steel bearings or suspension joints. A prospective buyer should give particular attention to the items that have appeared repeatedly. Verify the chain tension and condition of the sprockets; a chain that is marginally loose can produce a faint clicking on acceleration and may accelerate wear if not correctly adjusted. Inspect the rear wheel bearings for any lateral play or grinding noise when the wheel is rocked, as the 2014 advisory suggests they may be approaching the end of their service life. Examine the exhaust system for cracks, excessive rattles or soot‑laden pipes, since noisy exhausts were noted in 2014 and 2016 and could indicate mounting wear or a failing muffler. The front footrest was reported broken in 2016, so confirm it is securely fitted or consider replacement for rider safety. Given the bike’s age and low mileage, conduct a thorough visual and tactile survey of age‑sensitive components. Check tyre sidewalls for dry rot, cracking or hardening, even if tread depth appears adequate, as tyres older than six years can become unsafe regardless of wear. Look for corrosion on the frame, swingarm pivots and brake caliper mounting points, especially where moisture may have collected during storage. Test the 12 V battery’s voltage and cranking performance; a battery that has sat idle for years often needs replacement. Drain and replace all fluids—engine oil, coolant, brake fluid and fork oil—because they degrade over time even without high mileage. Finally, assess the brake discs for surface glazing or rust spots and ensure the calipers move freely without binding, as standing can cause pistons to seize. A short ride should reveal any abnormal vibrations, clutch chatter, or uneven power delivery that would warrant further mechanical attention before purchase.