2021 Yamaha MT 0.8L Petrol · Q382 FGU

The defining mechanical story of this MT centres on persistent chassis and drivetrain advisories rather than outright test failures, with the most recent examination on 22 August 2025 returning a clean pass with no defects recorded. Across five recorded tests, the only PRS failure was a headlamp aim issue logged at the 2022 retest, which was not repeated and appears to have been a straightforward adjustment. More telling is the recurring pattern of rear suspension and steering component advisories appearing in both 2022 and 2024, suggesting progressive wear in the linkage assemblies, bushes, and headstock bearings rather than isolated incidents. The consistent appearance of rear tyre wear advisories close to the legal limit on two consecutive tests further reinforces a picture of rear-end component degradation developing over the vehicle's life. With 10,651 miles accumulated over approximately five years, the MT has averaged roughly 2,130 miles annually, which is notably low for any motorcycle and indicates either deliberate limited use or extended periods of standing. This usage profile means the engine, transmission, and brakes have experienced minimal thermal cycling and mechanical wear relative to typical service intervals, which is generally favourable for internal component longevity. However, prolonged standing periods carry their own risks for motorcycles, including moisture accumulation in unused brake calipers, surface corrosion on brake discs, hardening of suspension seals and bushes, and tyre sidewall deterioration from static loading. The recurring rear suspension advisories despite low mileage suggest that standing-related drying out and surface corrosion of bushes and linkage bearings may be a contributing factor alongside normal wear. Given the documented history, particular attention on a test ride should focus on the rear suspension assembly. Listen and feel for clonks or vagueness over undulations, particularly when load is applied through the shock, and have the rear wheel elevated to check for vertical play at the swingarm pivot and any lateral movement in the suspension linkage bearings, which were specifically flagged in 2022 and remained advisory-worthy by 2024 in the form of a worn rod pin, bush, or joint. The steering headstock advisory in 2022 warrants a careful check for notchiness through the central steering position, especially as the bars fall back to centre; the front end should drop freely under its own weight when lifted off the stand, with no tight spots or graunching. Additionally, check the rear tyre for uneven wear patterns across the tread, as the repeated advisories for tyres approaching the legal limit suggest the carcass may be ageing out rather than simply wearing down. The drive chain advisory recorded in 2022 also merits inspection given the low overall mileage, as chains that sit unused can develop tight spots and stiff links. With the ignition off, rotate the chain by hand through its full travel, looking for any tight links that catch, and assess the slack against the specification in the owner manual, aiming for roughly 20 to 30 millimetres of vertical play at the midpoint between sprockets. Inspect the chain for surface rust between the plates and rollers, which is common on lightly used machines, and verify the front and rear sprocket teeth for the characteristic hooked or shark-fin profile that indicates replacement is due alongside a new chain. Finally, during the ridden portion of any evaluation, monitor for any vibration through the handlebars that might suggest headstock bearing wear, and pay attention to brake feel, as the rear brake caliper and disc should be inspected for light surface corrosion given the low annual mileage, which can cause judder until the pads bed back in.