W/E 29th June 2020


So Atlas #1 is taking shape at last. The swinging arm is in along with the rear suspension. Alternator rotor, starter sprag and starter motor in place. Oil cooler also positioned.

The swinging arm and suspension linkage with all new bearings slide in easily.


A Mk 3 Atlas should have twin oil coolers but I’ve decided to install just one. One oil cooler is plenty (it doesn’t really need one for the UK weather) and has the advantage of not getting damaged in the event of an accident – both times I’ve slid up the road the left hand oil cooler has been damaged.


The roller on the right is the polished one…really?

The starter sprag is a Zimmerman unit with oversized rollers. The rollers are made out of silver steel bar that has been hardened. Before the bearings went in I polished them with a Dremmel to give a better fit with the ring gear. I’m hoping this arrangement will work for longer as the last time I used this sprag the unhardened rollers wore pretty quickly.


In assembling the starter side I lined up the gears and noticed they combined really smoothly. It made me think about Atlas #3 and how the gears didn’t seem to mesh so well as although the right gears they weren’t a pair. I’m resolved to install the original gears on Atlas #3 now as it was noticeable how much more smoothly the paired gears run.



The carb’ has been offered up to take measurements as I don’t intend to refit the standard airbox. Bellmouths and foam filters are available and I’m going to go this route. The benefit of this will be more space around the shock mount which should mean I can fit an even larger (wider) battery. It’ll also make tinkering with the carb’ easier as I won’t have to fiddle with the rubber connection hoses…and finally it’ll look more ‘edgy’ which we all know is important 😉

Nick 🙂

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