leakage

Hi, this is my first post on this forum and sadly the it has to be for an issue. I just bought a black/silver Mille 1999 as fancied fancied a change from the inline 4 hum of my cbr600 and the ape seemed to be a good choice, especially given the low prices here. I bought the bike privately...

The top of my fork tube is weeping oil, does the tool kit come with a suitable C spanner to tighten, if not where is a good place to get one. It has only covered 1500 miles to date, is this a common problem :O cheers