Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
He should have had a word with the metallurgy department first! As a teenager, I broke my hand punching a T100 which had ground to a halt after oiling up its plugs again, and was smoking badly. I took the head off, literally single handed as the other one was now in plaster (after the punch, which did zero damage to the Triumph), to find home made BRASS valve guides, that now had oval shaped holes in them instead of round ones! No names no legal liability, I'd recently bought it from a Morecambe dealer, trading from a shed on an industrial estate, who's son went on to win 23 TTs.