1985 Yamaha RD350 0.3L Petrol · B170 FGT

A four-decade-old Yamaha RD350 with a completely unblemished DVSA record over the last four cycles presents an unusually tidy roadworthiness picture for a motorcycle of this vintage. Tests on 19 June 2025, 14 June 2024, 29 April 2023 and 28 April 2022 all returned clean passes with no advisories, no minors and no failures recorded, indicating that whatever mechanical condition the machine is in, it has consistently met MOT standards without examiners flagging any component for attention. The absence of any recorded corrosion, brake, lighting or suspension advisories across consecutive annual tests suggests the frame, cycle parts and braking system have either been exceptionally well preserved or, more likely given the vehicle's age and two-stroke heritage, have been replaced or refurbished periodically. For a buyer, this continuity of clean outcomes is about as reassuring an MOT pattern as is realistically achievable on a 41-year-old machine. The usage profile warrants careful consideration. Twenty-one thousand recorded miles accumulated over approximately 41 years equates to an average of around 515 miles annually, which is exceptionally low even for a motorcycle that has spent substantial portions of its life in storage. Two-stroke RD350s in particular are highly susceptible to the effects of prolonged standing, as their power valve assemblies, reed valves and crank seals can all suffer from lack of use, and internal corrosion within the expansion chambers and silencers is a well-known consequence of infrequent riding. The absence of any mileage gaps in the testing history, with annual MOTs consistently recorded since at least 2022, indicates the machine has remained in regular use and on the road rather than laid up, which significantly reduces the likelihood of seized internals or perished fuel system components, but the very low annual mileage still places greater emphasis on the condition of seals, gaskets and diaphragms that may have hardened through age rather than wear. For a prospective buyer, the lack of recorded advisories means there are no specific components flagged for immediate scrutiny, but the age and mileage profile dictate a thorough mechanical inspection centred on areas two-stroke RD350s are known to suffer from. On a test ride, listen carefully for any signs of crankshaft rumble or main bearing noise, as well as any hesitation or four-stroking that could indicate a worn powervalve, sticking decompressor or tired carburettor diaphragms. Check that the rear shock linkage bearings and swingarm pivot bushings move freely without binding, as suspension linkages of this era commonly seize through age, and inspect the front fork stanchions and seals for any weeping of fork oil. Examine the brake discs and pads closely, as even with clean MOTs the braking performance of a 41-year-old system can deteriorate through corrosion on the disc surface and hardening of the original rubber brake hoses, which should ideally be replaced with modern braided lines regardless of their current condition. Finally, pay particular attention to the chassis and electrical system during any physical inspection. Two-stroke RD350 frames are known to suffer from stress cracking around the steering head, swingarm pivot and rear engine mounting points, so inspect these welds and the surrounding tubing carefully for any signs of repair, cracking or corrosion that would not necessarily have been examined during MOT testing. Confirm that the electrical system, particularly the magneto, regulator rectifier and ignition components, is functioning correctly, as aged two-stroke charging systems frequently underperform when the engine is held at low revs. Finally, verify the authenticity and provenance of any recent restoration work, as the clean MOT record could equally reflect recent sympathetic refurbishment as it could decades of careful ownership, and a compression test, leak-down test and inspection of the powervalve operation through the rev range will provide far more meaningful reassurance than the MOT history alone.