Is the oil returning to the tank as frothy bubbles/little spurts or a constant stream? If the latter there's a lot in the sump which will cause smoke until it clears. (As an aside - I'm sure you're running the bike on the rear stand - my VH would smoke like billy-oh after a few minutes on the side s...

Dennis - you might need to check out Drags for these....

SG

For info, those are the exact original equipment pistons Ariel used for the alloy head 350s.
Back in the mid 1970s Writers had a 'bin' full of them for £5.00 a go, with rings and gudgeon pins. Unfortunately only in std bore size - but that stop me and a mate buying a couple!

SG

Roger Gwynn wrote: ↑Tue Dec 12, 2023 10:20 am Actually it is club SQ4 spares that have them...

I think that makes them only available to Club Members (for more reasons than just Club favouritism)?

SG

Paul - how much is 'major'?

Probably worth checking the condition of the felt wick in the oil tank, maybe it's missing completely?

This thread might help:
viewtopic.php?p=88975

SG

Swansea and frame numbers.... I've had a lot of discussions with DVLA folk about this over the years, having spent several decades working with databases. A few years ago I was given the nugget of info that the problem (then at any rate) was that the screens that the DVLA staff had to use to access ...

I replaced the old float and needle in my 375 with new 'ethanol proof' versions from Amal and also added the fibre washer under the needle valve housing as is often advised when fitting the 'ethanol proof' components. However, I found that with the fibre washer the new float and needle arrangement w...

Well well! In the first of the 'racing' pics number 5. with the often maligned full-width front brake looks to be out-braking number 6 (note also the fingers over the front brake lever!) Mind you, number 6 might be compromised by some weird stuff hanging off his fork leg... Thanks all for posting! :...

Heiko: Roger's referring to the sales literature area of teh doc repository: http://www.arielownersmcc.com/members_only/ariel_library/DocumentRepository/Ariel/SalesLiterature.htm See (eg) the 'Technical Data' page of the 1953 Sales Catalogue. However, some of the information you might need just won'...

Simes - it's been a while, remind us please which cases you're using (CNLF or LF) and which crankshaft, big journal or small journal?

SG