More newby questions

Hi

I've just picked up a 2001 R50 today and I have a few questions:

Really no timing belt? (Great!)

It's done 50k and looks like it's been serviced a lot for the first 35k then not at all. I will obviously get it serviced now... I use a local village garage, does it need special oil?

There is a bit of ticking from the engine (warm) is this tappets? Should I get this fixed do you think?

I can't get the rear windscreen washer to work, is this a common issue with early models?

any help, very much appreciated.

Boleigh