Last point. If you look at the exhaust rocker bolt boss in the far side of this picture, it has a 1/4" chip out of it. Is it worth the risk of building this up? It's not been causing a problem. Simon, Isn't that damage caused by someone removing the rocker box with the valve fully open i.e. th...

Hi Paul,
I presume the plugs are wet with gasoline after all that kicking?
Chris

Are you certain your ignition timing is not 180° out?

Hi Dave,
I'm not sure to which spring you mean but by chance I was putting a BA box together today and quit just before putting the outer cover back on. Come on over tomorrow and you can take a look.
Regards, Chris

Paul,
What a disappointment that must have been to see the masking tape remove the paint. I can feel your pain! I admire your restoration prowess and I can't be the only member of this Forum who is inspired by your accomplishments,
keep up the good work,
Regards, Chris

For what it is worth here is a scan of the Solex specs in Roy Bacon's "Ariel - The Postwar Models":

This has been discussed before and I think the consensus was there should not be a float bowl gasket used. I don't have one on my Solex and it doesn't exhibit any problems.

From the above Zenith service bulletin: When idling, the mixture is provided by the pilot jet (g) and the volume control screw (W) regulates the richness of the idling mixture. By turning screw (W) in an anti-clockwise direction, enrichment takes place up to the limit of the pilot jet output and con...

Does anybody know what the jet (circled in picture) does? It seems to be part of the pilot jet feed but the jet list for the SQ4 doesn't mention it. Pete Hello Pete, I think that is called the pilot or auxiliary jet. I don't know what the size should be but I could try and measure the hole on the o...

Pete.Silson wrote:Also what tail light should I be fitting?

I think the tail light should be an MT110.