What is the Best ATV manual?

If you want quality and durability for your money do notbuy anything else than: Honda, Kawasaki, Yamaha or Polaris...

They are the leading brands and have a HUGE range of engine and bike sizes and its a piece of cake to get parts if needed. They may cost a few thousand dollars but they are worth it... you could get cheaper Chinese bikes like the ones on E-Bay but they just won't last as long and I'm saying this from experience....

Good luck!!