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Honda CB450 K5 1972


A slick 1972 Honda CB450 K5 brochure front.


This is my latest restoration (2017/18) done to a very high standard as I'm hoping to ride it during the summer months and I want it to be one of the best examples in the country as has been the case with my previous restorations. A complete strip down (excluding the engine, this was to happen later) everything was cleaned and inspected, also the valves and ignition timed and set up, just too many pieces replaced to list, e.g. everything rubber replaced, new cables, new seat cover, some rewiring, frame repainted, air filters rebuilt, front forks rebuilt, and much more for safety and reliability, then finally the aluminium side cases polished. There is no surface rust or damage anywhere on this bike and it wants for nothing.
My last addition to the bike was the fitting of new rear shocks for a better ride and having the wheels completely rebuilt with new wheel bearings, oil seal, stainless steel butted spokes, nickle plated nipples, new tubes and tapes and Avon RoadRider tyres fitted, I later fitted a complete new clutch and while I was in there I replaced and restored worn gear change stopper parts that are known to give this model an issue with slipping out of second gear into neutral, all sorted now.
It's a sensible classic bike to own and ride as it doesn't fall into the category of 'I must have a fashionable classic Japanese bike regardless of the stupid highly inflated prices' if you know what I mean?
It looks the business as it's from the early 70's and painted in original colours as with the CB750 K2 series of that time, Honda enthusiasts say it's a proper Japanese classic motorcycle with it's twin cylinder DOHC engine that was a revolution at the time and only usually associated with racing motorcycles. Weighing almost 100 LBS less than the CB750 K it's an ideal classic Japanese bike with a cost less than half that of a CB750 K in the same top condition but this does seem to be rising for very good examples as collectable 70's bikes start to dry up, look how prices have risen for the Kawasaki H1s now that H2s are at stupid stupid money and out of reach for many.
Watch the video of the CB450K5 on my drive at a time when I thought I'd just about finished the restoration, seems the restoration never ended as I put more money and time into it, months later I did the walk around video in the garage with no chatting, sorry about the camera phone dithering.

Spring of 2019 I decided to remove the engine just to replace the cam chain as they have a tendency to stretch over time but being the perfectionist that I am I then decided to fully rebuild the engine using two new pistons kits .25mm oversize, all new seals and had the DOHC head professionally renovated, more expense but well worth it in the long run.
As with all my restorations I photographed the work as I went along.

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CB450 K5 continuous improvement.
The CB450 K5 walk around in silence.
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Email: lee.doxey@ntlworld.com