Thursday, 3 July 2025

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

 

Apologies to anyone that has come to this page expecting to see exclusively vintage AJS motorcycles .....scroll down the page a bit and you will find plenty of them. However, I ran out of OHC AJSs to restore and I'm now working on early cammy Velocettes.

In 2023 I started the restoration of 2 early Velocette KTTs plus another Mk 1 OHC cammy special - a few details about each of these bikes can be found here and here

Quite a lot of work has been done on these bikes over the past 2 years and the INDEX PAGE provides links in chronological order of the project so far.

I have 3 rolling chassis up together - see here - many smaller details - saddles, tanks, steering dampers, steering locks etc have been sorted out and clutches, gearboxes and positive stops for the 3 bikes have been rebuilt. For the past few months I have been working on completeing the dry build of KTT 305. This is now pretty well complete


and I'm just waiting for a new bum pad to be made that fits between the seat and the mudguard stay. More on this next time....

There was an excellent article in the most recent copy of Fishtail (FT 509) by Bill Swallow about motorcycle racing in New Zealand. Having visited the country twice and taken many pictures of racing and at various museums I thought it would be more useful to put some of these on my blog rather than them just "sitting" on my computer.


So, the most recent post - here - contains a selection of pictures (and movies) that may be of interest.

During the last 4 years I have posted quite a lot of information and to aid navigation the "Labels" section on the right side of this page lists the various projects.

The labels marked "INDEX" give a link to a page that provides a complete list and links to all of the separate sub-projects related to that main project.

Alternatively, scroll down this page and see what's here...

When I started this blog I already owned (and still own) a 500cc AJS R10


that I've been riding for many years and wanted an early 350cc bike. I bought one at a Bonhams auction; this is what I brought home....

....a bit of work was needed to bring it back to life 

Full details of the restoration can be found here.

During the restoration of the K7 I figured that I could put an early overhead camshaft Velocette cylinder, cylinder head and cambox onto the crankcases of an AJS 350cc engine from 1931, convert it to chain-driven OHC and make an engine that looks like a K7 but has a Velocette top-end. I had a 1928 350cc AJS sidevalve that I had bought on eBay and used that to create the AJcette ....giving credit to both manufacturers.

It looks pretty similar to the K7 and to demonstrate that there really are 2 bikes, here they are both together.


Details of the AJcette project can be found here.

I have quite a lot of early Mk1 OHC Velocette parts and after completing the AJcette I decided to use some of these to make a replica of a one-off bike that AJS built in 1929/1930 for an attempt on the world speed record. The original is a huge V-Twin beast that started out with a naturally-aspirated engine but, having failed to gain the record, was supercharged ...and again failed. The bike ended up in Tasmania for many years and, after being repatriated to the UK and restored, it is now in the National Motorcycle Museum.

This is what the original looked like:

and this is my recreation.

 

 

Like the AJcette, the V-Twin uses Mk 1 OHC Velocette cylinder components. The full story of how this bike was built can be found in the links here.

There is also a 14 minute edited Youtube summary of how these bikes came about here and a longer unedited version here.

In January 2022 I started the restoration of a 1933 AJS Trophy Model

and this was completed in March 2023.

 

The Index Page for this project can be found here.

I also reported briefly on a couple of my other projects ....vintage OHV Nortons


 and putting a Marshall supercharger onto my 1934 MG PA

 


I hope you find something of interest.

Classic Motorcycle Racing in New Zealand

An excellent article by Bill Swallow in the most recent edition of Fishtail (Velo Owners Club magazine) about racing in New Zealand prompted me to hunt out pictures that I had taken on two separate visits to the country in 2017 and 2020. The first visit was a bucket list holiday; my wife and I spent 5 weeks there and after flying to Auckland, we hired a car and drove North to the Bay of Islands and then travelled down to Invercargill at the southern tip of the South Island via Wellington, the Cook Straits car ferry and Picton, stopping at many places en-route. I won’t bore you with pictures of hot springs and beautiful seascapes and scenery (or Hobbits) but I have got quite a few pictures relevant to classic and vintage motorcycles.

We met up with an ex-work buddy of mine, Bob Davis – an avid motorcyclist, in Auckland and it turned out that the early February race meet at Pukekohe coincided with our holiday …so off we went.

The same thing happened in 2020 but this time we didn’t plan a long visit but rather a quick stop-off for the racing at Pukekohe before travelling on to spend 3 weeks in Tasmania. Apart from touring all around Tasmania I was trying to find if anyone remembered the OHC AJS V-Twin that had resided in Launceston for which I was building the replica at the time; that ended up being a fruitless mission but a lovely holiday.

Our timing was not so good for the second visit – Covid had just hit the world. My choice of airline was also not good; I had chosen to travel with China Airlines via Beijing (because they had a really good deal on business class seats – and which had been booked many months in advance, long before Covid came out of Wuhan). Shortly after we arrived, New Zealand closed its airspace to flights from China – and so there was zero chance of taking our return flight a month later out of Auckland and we had to rebook with Vietnam Airways via Hanoi from Sydney. Oh well, at least we made it back to the UK.

Anyway, back to motorbikes; first, at Pukekohe in 2017:

A beautiful AJS GR8. This was raced by the lady standing to the left of the bike.

The GR8 was the sporty version of the G8 – 1926 OHV singles. I had a G8 at the time – pictured below

and so the racing version was of great interest to me – I had never seen one before and have never seen one since. Hers is a lot prettier than mine but I was very happy with the performance of my G8.

Some beautiful Rudges

An immaculate cammy AJS

1930s and probably an R10 – but I don’t have any further details. This would be the racing, rather than the off-road version that I restored.

The Eldee Velocette.

Nearly impossible to see anything – but I have some much better pictures without the fairing from the 2000 Pukekohe meeting – see later.

Anyone that is in New Zealand and is interested in old vehicles should visit the British Car Museum near Napier – reputedly the largest collection in the world.

…..and the owner….

Although it is well on the way to the Antarctic, Invercargill is somewhere that should be visited at least once in a lifetime by anyone travelling to NZ and has an interest in historical motorcycles and racing. There are (at least) 2 places of interest.

First is Hayes hardware shop which, apart from having a unique collection of vintage machinery, including many bikes, houses Burt Monroes legendary Indian.

The picture below is a replica of the bike that you can try for size.

I figured that Burt must have been a bit shorter than me.

The Indian

The Velocette

and, for me, the picture that defines the meaning of the expression Dogged Persistence.

The other must-see motorcycle museum in Invercargill is the Classic Motorcycle Mecca.

A couple of pictures on my blog can’t even start to do it justice - you need to visit.

Although nothing to do with motorcycles, Bill RichardsonsTransport Museum should also be on the list of places to visit in Invercargill.

Our 2nd visit to NZ in 2020 – the one when we had to rearrange our return to the UK because of Covid, also happened to coincide with the Pukekohe race meeting at the beginning of February. By this time, I had got a slightly better camera on my phone (a Samsung S8 mini – yes, it's prettty basic, but it does everything that I want and I still use it now) and discovered that a sequence of still photos could be taken by holding down the trigger button – very useful for capturing images of racing motorcycles.

But, first a brief tour around the paddock.

A brace of Brittens.

The Eldee – now unfaired

A lovely Mk IV KTT

The start of the classic race

Around the course

A few of the bikes in action...



Fond memories…..