Vintage AJS

This blog is about restoring vintage OHC AJS and Velocette motorcycles

Saturday, 11 April 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 ...

KTT 581: Engine Rebuild – Part 1 – The Bottom End

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With the 2x KTTs and the 250 DOHC dry builds completed it was now time to give the engine of KTT 581 some TLC. It has been sitting forlornly...
Thursday, 26 March 2026

The DOHC 250 Velo Project: Completing the Dry Build

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Although the engine was now bolted into the frame there were numerous little jobs that needed to be completed. The original plan for this bi...
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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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