My last bike did not have a fill cap by the trany for oil. It was all done up in the neck, also had dip stick there. My new 06 has dipstick up top and a fill cap down low. Do the trans/motor still share the same oil? im confused. Acording to my manual its all together still but want to make sure. Also i hear a kind of growling sound from trans when sitting still. Should i be worried? I guess i will have to get used to all of the new changes. Thanks for any advice.