2015 Yamaha YZF 0.1L Petrol · FN15 MZX

The most recent DVSA MOT, dated 4 January 2024, recorded an overall pass but flagged a failure on the direction‑indicators, classed under 4.4.1 (a) (ii). The earlier test in October 2022 was a clean pass with no recorded defects. This pattern suggests a generally stable maintenance record, with the sole notable issue being an electrical fault that has not recurred in the intervening period, indicating that the vehicle’s mechanical components have been kept in acceptable condition while the indicator system may have been neglected or suffered a one‑off failure. At eleven years old the Yamaha YZF shows a cumulative mileage of 23 055 miles, equating to roughly 2 100 miles per annum. Such low annual usage points to either very light riding or extended periods of storage. The limited mileage reduces the typical wear on consumables such as brake pads, clutch plates and tyre tread, but it also raises the possibility of age‑related degradation – for example, rubber hardening, battery sulphation and corrosion of metal components that have been idle for long stretches. Prospective buyers should verify that all lighting functions, especially the left‑ and right‑hand indicators, operate correctly before purchase. Inspect the indicator bulbs for filament integrity, check the wiring harnesses for corrosion or cracked insulation, and confirm that the flasher relay is functioning. On a road‑test, listen for any intermittent clicking from the indicator circuit, watch for delayed or absent flash sequences, and note any dashboard warning lights that may indicate an underlying electrical fault. If the indicators are not remedied, the vehicle will not be road‑legal until the fault is corrected. Given the bike’s age and low mileage, a thorough visual and tactile inspection is essential. Examine the tyre sidewalls for cracking, dry rot or hardening, as time can degrade rubber even when tread depth remains adequate. Test the 12 V battery’s voltage and load capacity, and look for signs of sulphation or electrolyte leakage. Verify that the brake fluid has been replaced within the last two years; old fluid can absorb moisture and reduce braking efficiency. Check the oil level and condition, ensuring it is free of sludge and that the service interval has been respected. Finally, inspect the suspension forks and rear shock for smooth operation, look for any oil leaks around the fork seals, and confirm that the chain and sprockets are correctly tensioned and not excessively worn, as these are critical for safe performance on a low‑use machine.