Ah ha, I think I may have fixed the idle surge problem (or at least covered it up!)

There's a hidden adjustment screw on the air flow meter (you have to drill out a metal plug to get to it).
Wound it all the way in (about a turn and a half), then out 4 turns and the surging has gone :D

The air flow meter is a crappy ancient vane flow type and I think the screw adjusts the amount of air that's allowed to bypass it when the vane/flap is closed.
My suspicion is that is wasn't allowing quite enough air through at idle and the surging was something to do with the vane opening and closing. I guess it could be a bit sticky at it's closed point, or possibly upset by me not putting it in the correct orientation.
Whatever the case my bodge will do for now :)

I've gone and blooming done it - just sent off my IVA application :eek:

Need to pull my finger out and get it finished now!!!

Well done John......hope I am not far behind you:o

Well done John! Hopefully I'll be ready for the IVA this time next year!:)

Just looking through your photos John, are use using those lock stops now?

clicky

Good find!

Sadly they weren't quite a good a find as I'd hoped :rolleyes:
The passenger side works well, but it restricts the steering a bit too much on the drivers side...

Oh, bummer. :(

VOSA just phoned to relieve me of my bank balance!
They recon it'll take two weeks to process the application and get back to me with a test date.

Not much to report, but here's a few pics I took of her out in the daylight this morning:

Build is looking good. Lets hope you fly through the IVA and we'll have another on the road.