Where in Wales?
The wiring mods really are easy, and the detailed steps on the site very good.
As for jetting, you can either send it to a dyno man, and pay to have it setup, or with patience you can do it yourself. The basic rule is start big and drop a size at a time until the engine runs sweet and the plugs are a good tan colour. Then, to be safe, go back up a size and you'll decrease the chances of you seizing...
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