2004 Yamaha YFZ 350 0.3L Petrol · BR04 AOY

The most recent DVSA MOT test for this 2004 Yamaha YFZ 350 was conducted on 17 April 2025, during which the vehicle passed with no defects or advisories recorded. Prior to this, the motorcycle also passed an MOT on 13 January 2023 with a similarly clean outcome. With only two test entries on file and both returning pass results without any advisory items, there is no documented evidence of deteriorating condition or recurring mechanical concerns within the official record. The absence of advisories in the 2025 test suggests that any components inspected under the MOT regime, such as lights, tyres, brakes, and exhaust emissions, were in satisfactory condition at the time of examination. While this indicates a stable and compliant maintenance trend, it is important to recognise that MOT testing for motorcycles does not cover the full spectrum of mechanical condition, particularly items such as internal engine wear, transmission health, or chassis fatigue. Regarding the recorded mileage, the data provided is incomplete, which makes it difficult to assess annual usage rates or identify any significant gaps between tests. Given that this is a 2004 model now over twenty years old, even modest annual mileage would likely place the vehicle well into a high-wear bracket by modern standards. Without confirmed mileage figures, a prospective buyer cannot determine whether the motorcycle has been used regularly, sparingly, or stored for extended periods, each of which carries different mechanical implications. A low-mileage or infrequently used example may suffer from issues associated with standing, such as fluid degradation, internal corrosion, and dried seals, whereas a high-mileage example would typically exhibit accelerated wear on consumable components. Clarifying the mileage directly with the seller and cross-referencing it against any service history is therefore essential before committing to a purchase. Given the sparse MOT history and the absence of any recorded defects or advisories, the buyer should focus on age and usage-related deterioration rather than chasing recurring test failures. The tyres should be examined closely for sidewall perishing and cracking, as rubber compounds degrade over time regardless of tread depth, and old tyres can compromise handling even on a light off-road machine like the YFZ 350. Brake discs should be inspected for surface corrosion and the calipers checked for binding or seizure, particularly if the motorcycle has been stored or rarely ridden, as standing moisture can cause pitting and uneven braking performance. The exhaust system, including the silencer and mounting brackets, is prone to internal corrosion and external rust on a vehicle of this age, and any blueing, rattles, or loose fittings should be noted during inspection. Additional checks should include the condition of the 12-volt battery, which can lose capacity through prolonged standing or trickle discharge, and the charging system should be verified by checking voltage output with the engine running. All fluid services are time-based rather than purely mileage-based, so the brake fluid, fork oil, and any hydraulic clutch fluid should be assessed for age and condition, with a full fluid replacement advisable if servicing records cannot confirm recent changes. The drive chain, sprockets, and suspension linkages warrant close inspection for wear, corrosion, and adequate lubrication, while the carburettor or fuel system should be examined for varnish deposits, stale fuel residue, or leaks if the machine has been laid up. Finally, verifying the continuity of the V5C registration document, confirming the frame and engine numbers match, and reviewing any available service book stamps will help establish the authenticity and provenance of what is now a vintage two-wheeled vehicle.