cant see an issue... whatever the engine no. the major performance differences between the 197 9e and the 32/37a competion engines are all in the cylinder so as they are an unknown on you bike i woulldnt worry whether its 9e 32 or 37a etc etc. in fact what its called is minor compared to how it runs...

Hi

In my opinion it is a Marcelle scrambles barrell with a home (but well made) made inlet stub.

The engine has been built with a 10E crankcases. Just the same as a 9E but with an upright cylinder.

Do not take too much notice of the engine number. These were just on the inner chaincase and tend to

get swopped between engines as spares and repairs become neccessary to any one engine.

Hope this helps.

Regards

Sparks2

The engine number is a plate fixed to the inside primary chaincase, which is detachable from the crankcases, so in the bikes 50 years lifetime, its likely this has been changed, these engine number plates are available (blank) A siba dynastart crankshaft wouldn't work with the magneto type side cover that you have, so the crank would be a 9e thru 36a type (could even have full flywheels and oval rod fitted)with conventional magneto. The gearbox is the important part, wether yours is the wide ratio trials box. As for the barrell, as far as I remember, marcel had the cutout on the fins, to stop heat transfer to the transfer ports.

hi . is ken still on the forum, i appreciate it's an old thread but i wondered has ken still got this 9e bottom end ex-meadows - thanks

sorry by ken i meant kerabo on this forum

Hi, just reading the topics and thought I could give some info. I recently bought a Francis Barnet 197 and was struggling with getting some info. I finally searched and joined FB owners club. They gave me all the info I required along with much more. Very very helpful and extremely knowledgeable, could be worth a try.

Good luck with your search