Hi there, we are a service shop for Marine and small engines, specializing mainly in marine products. We are currently servicing a wide variety of atvs also as hunting season is quickly approaching. One atv in particular, a 2005 grizzly 660, there are absolutely no signs of any leaks coming from the motor but this thing burns through oil like crazy. I was informed that that is most likely caused from cylinder damage. Is this accurate. And if so what kind of labour am i looking at to tear down this engine. Thanks for your time!