oil tank

I have recently purchased a 2011 Apex and I am getting it ready for the season....and I found the 2 top isolator mounts on the oil tank have broken, rubber has separated....is it standard for the oil tank to have rubber isolaters for the oil tank? I cannot find them on any parts...

well it finally happened to me, oil tank is ripped open but, no great story to tell. was simply doing oil change and tore/ripped the bottom of the oil tank open when loosening up the drain plug on the tank (WOW is it ever made of thin aluminum and are the mounting flanges ever flimsy) also...