Advice on a YZ 250f
I'm looking at buying a 250f, I've spotted one local to me for what i think is a very decent price (£800). It's a 2005 model and has mainly been used as a field bike. The person who's selling it has told me that it needs some tlc. The bike also has an oil leak from underneath the engine, but apparently only leaks whilst its running.
If I were to buy the bike I'd be using it every now and again to go on my local track.
Do you think the bike would be a good buy?
What could be causing the oil leak?
Is it more trouble to fix than its worth?