Thanks to Graeme and Doug for reply and information
Today a Douglas mate informt me,- that he are the owner of two Douglas carburettor,- what he think is,- for douglas
The first carburettor is market 5/116/S,- the second 5/104/S - they are completely identical to look at outside.
When they are measuret indside,- the diameter of induction bore,- on engine side,- is different.
5/116/S is about 22,0mm dia. - and 5/104/S is about 20,5mm
Is it possible the 5/104/S came from a S5 engine?
Is it possible to increase diam. 20,5mm to 22,0mm with a positive result,- and fit it to a S6.
Please help with this evaluation
Regards Edin DK