Valve stem oil seals. As said above, a little oil leaks past them overnight, and gets burnt off when you start it from cold. Had exactly the same symptoms on my 86 XT.
Previous owner clearly knew about it, thats why it was warm when you went to see it.
Try Fowlers in Bristol. 0117 9770466. They wont do anything without a frame number, so make sure you have it to hand when you call. They've always been good to me, and my bike is an import too.
|