Cam help required

I am the lucky owner of a Zenith B2, 1930, 350cc OHV Twin port JAP engine.

I did restore this bike some years ago but never started the engine, being happy to keep it as a display.

I have decided now to use it but while I was playing with the valve timing, I realised I had the wrong cam profile (only one lobe cam with rollers/cam followers). I gave it to a specialised cam grinder to be redone but it’s still not right.

This handsome Zenith was restored but never run. Now its owner wants to use it and needs some help…
This handsome Zenith was restored but never run. Now its owner wants to use it and needs some help…

Would you be nice enough to publish this in your great magazine (to which I have been a subscriber for many years) as I need some help. The engine number is P10Y/79718E. If someone could send me a drawing of the right profile it would be great.

Trotty, email trotty@nettel.net.nz

Read more letters, opinion, news, views and features in the December issue of TCM

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