Vintage AJS

This blog is about restoring vintage OHC AJS and Velocette motorcycles

Friday, 9 October 2026

WELCOME to my blog about restoring vintage overhead camshaft AJS and Velocette motorcycles

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Apologies to anyone that has come to this page expecting to see exclusively vintage AJS motorcycles .....scroll down the page a bit and yo...

First Start of KTT 305

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Not everything goes according to plan ….and this was one of those instances. I was hoping that KTT 305 would start as easily as KTT 55 but...
Sunday, 20 September 2026

Final Build and First Start of KTT 55

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Apologies if my blog is starting to look somewhat repetitious but it’s difficult to avoid a certain amount of repetition when building 3 v...
Thursday, 27 August 2026

A Blast from the Past

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A reader of my blog recently sent me this link – now many years old – about a bike that I had restored 20+ years ago and so I thumbed thr...
Thursday, 6 August 2026

Final Builds of KTT 305 and the DOHC 250

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It took a bit longer than expected to complete the final build of the DOHC 250 because the UK (and much of Europe) has experienced temperatu...
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Contact Richard at vintage.ajs.uk@gmail.com

Vintage AJS
Richard Johns spent 45 years in the engine industry, starting in 1969 as a student with Perkins Engines. After completing a PhD at Imperial College, London in 1980 he subsequently worked for AVL in Graz, Austria, Ricardo Consulting Engineers and CD-adapco (now a division of Siemens) developing and applying Computational Fluid Dynamics software to IC engines before retiring in 2015. Since retiring, he spends his time restoring vintage motorcycles.
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