2000 Yamaha YZF600 0.6L Petrol · X184 BAJ

A single major fluid leak from an offside front shock absorber, recorded as a fail at the 2022 test, sits at the heart of this YZF600's mechanical narrative, with the bike subsequently passing three consecutive annual examinations but carrying an unresolved advisory on front tyre tread depth for each of those three runs. The most recent test on 28 May 2026 was a pass, continuing an improving trend since the 2022 failure, though the persistent front tyre advisory across 2024, 2025 and 2026 suggests that the front end is either being loaded consistently through enthusiastic cornering or that the geometry and suspension components have never been properly addressed following the original shock absorber failure. The earlier exhaust noise advisory and the minor reflector fitment issue were both resolved without reappearing, indicating those were isolated occurrences rather than systemic defects. Recorded mileage of 16,409 miles across roughly 26 years equates to an average accumulation of around 631 miles per year, which is exceptionally low and points to a motorcycle that has spent significant periods either garaged, off the road, or used only sparingly. The DVSA record shows testing activity in 2022, 2024, 2025 and 2026, but the absence of any test entries between 2022 and 2024, or for that matter before 2022 within the supplied data, suggests the machine may have been SORN or unregistered for stretches. Low annual mileage on a motorcycle of this age carries specific mechanical consequences: rubber components such as fork seals, swingarm bushes, brake hoses, caliper piston seals and drive chain o-rings suffer from prolonged static loading and dehydration rather than wear, tyre rubber perishes through age rather than tread loss, and the carburettors on a YZF600 of this vintage are particularly prone to internal corrosion, fuel varnish build-up and pilot jet blockages after extended lay-up periods. A prospective buyer should treat the 2022 offside front shock absorber fluid leak as a priority inspection item, even though it has not reappeared in the subsequent passes, because shock absorbers of this age commonly fail through seal deterioration that can recur once the original unit reaches the end of its service life. Inspect the offside front fork leg carefully for any weeping of hydraulic fluid around the seal head, check that the fork leg does not hydraulically lock or bottom harshly when the front end is compressed by hand, and listen for knocking or clonking transmitted through the handlebars over uneven surfaces during a test ride. Given the recurring front tyre advisory, examine the current front tyre's age stamp, tread depth across the full width, and look for uneven shoulder wear or feathering that could indicate misaligned forks, worn head races or a tired steering damper. The exhaust noise advisory from 2022 is worth a brief verification by listening for any rattling, blowing or ticking from the exhaust system on the overrun, particularly at the header pipe joints and silencer mounting points. With such low recorded mileage, the carbs should be inspected for signs of having been drained and refilled with fresh fuel, and the tank and fuel lines checked for rust contamination that could have entered the float bowls during any period of standing. During the test ride, pay close attention to throttle response from a cold start, watch for any misfire or hesitation that would suggest fouled plugs or degraded carburation, and check the rear brake and chain condition, both of which suffer disproportionately from prolonged inactivity. Finally, verify the continuity of the mileage record with any service history present, as the very low annual figure could equally reflect genuine light use or extended periods where the bike was simply not in active service.