I was thinking about buying a 90 ex500 that has 6,000 miles on it. The owner guarentees me it will run after I fix the carberator. He tells me it as been sitting and is like new. This will be my first motorcycle so I know nothing about them. he is selling it for 1500 and I dont know if this is reasonable or not? I am wondering what it takes to fix a carberator if it has been sitting? any advice guys?