When you are draining are you draining both the engine and the oil tank? Yes, it would be much better to do either an LTR breather box or one of the aftermarket ones. It will ensure all the extra oil goes back in the base instead of your airbox.
2017 YFZ450R XC Setup - OíNeal Racing, Leatt, 4Arm Strong, Engine Ice, ASV Inventions, Ryno Power, ODI Grips, AMSOIL, Sunstar Engineering, Braking, Acerbis Plastics, Kenda Tires, SCOTT, Peak Racing Products, RadicalX
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