Not many have taken the time to learn to rebuild SUs. Massively overrated job, and massively overpriced for the simplicity of fitting the bushes for the first time. After a few rebuilds, you find that a careful hand will drill the carb body for the bushes really easily. You drill through the sizes from 1/4 to 5/16ths in small steps. The bushes will sit in nicely, and a touch of loctite will ensure they don't move. Push the bushes through until they're proud of the inside bore and file back with a jewellers file to suit the curvature of the bore. if the alignment of the bushes are imperfect, use a 1/4 drill in ones hand to carefully hone through both bushes at once a little by hand. I have a jig to hold them secure as I drill them vertically as required if I feel the need.

Once the twins are new and in tune, I have not felt the need to touch them for years. The set for the Mk2 have kept in tune for five years now. Every now and then I get the urge to have a play, but only find that I am bumping them out of tune, and bring them right back to the original setting in the end.

I love twins for the look of them alone, so I'll go the extra mile sometimes to rebuild a set.

Crikey Mick, you nearly make that sound like I could do it myself. I can imagine once you're intimately familiar with them you can get all hands on.

Scotty

Well that does make it sound eminently doable. And if I were to get stuck I could always pop into my mechanic and plead for help.

Cheers 1018. That's good to hear!

So, that said, what size would I be looking at??? Twin 1.25? 1.5??