WE ARE OPEN FOR VIEWING AT ANY TIME WITH PRIOR ARRANGEMENT 2009 YAMAHA YFZ450YL THIS BIKE IS FITTED WITH GYTR EXHAUST SYSTEM NERF BARS HANDLE BAR GUARDS AND MORE VIEWING IS ESSENTIAL YFZ450 - Pure, race-winning performance Ever wondered what that ATV in front of you is? Chances are it’s a YFZ450 . With the highest power-to-weight ratio of any production ATV, this multi-championship-winning machine has been the atv elite’s choice for the last five years. The lightweight alloy single-cylinder four-stroke engine has a five-valve cylinder head fed by a Keihin 39mm carburettor – the biggest and most sporting carb in Yamaha’s ATV range – that powers it past the opposition in a surge of terrain-swallowing energy.