I would be surprised if a burgess air filter made any difference, itvus not very good at filtering air socwould offer little restriction

There is little difference between 1919 and 20 as far as i can see it is only the tank transfers, if I remember correctly and your bike has the later ones. Currently browsing a motorcycle museum in Chemnitz.

Such a thing is not available, the best is the owner's guide. and use later exploded views from parts books all available in the library.

I am glad to hear that you do not intend to restore the bike. What is 'OEL'? All parts, fittings and complete pipes are available. Oil pressure gauges are a specialist repair really, apart from basic cleaning. Sealing the fittings is a matter of using plumber's PTFE tape or other thread sealant, Wel...

Sorry, I cannot tell you that as I have only just started transcribing the SQ4s into the spreadsheet and have not as yet added the destinations. I may well add them when I get back to it, which will not be until the autumn as I am out riding my bike during the summer. The quantity going to North Ame...

Nev - agreed undoubtable better but not quite as original. A Honda engine is better but only one person I know has replaced his Ariel engine with one. I use a MKII Amal on my sporty 500 , which is even better but even less original.

Bloody terrible, please give it a thumbs down, not artistic freedom but a load of pictures of bikes with Ariel stuck on the tank, I had to stop watching, too painful.

Always check the last job you did, 9 times out of 10 it is something to do with that. Best bit of wisdom I received as a young lad.

Never rule anything out!

W is 1928 and engine 8125 was a model B despatched to Czechoslovakia in frame W 9250. Frame W 1180 went to Toronto as a model A with engine W 2927. I doubt if there are many parts in Canada but Ariels of this period are better served than any other make so if this era of bikes takes your fancy an Ar...