when i ride i just recently noticed (but it may have been happening all the time) a rattling noise comming from under the gas tank, so i assume its the engine. its not all that loud but it sounds kind of like a can of marbles vibrating. does anyone else get this on their 300ex?

 

two things to check....common.....hold the revers lever from rattling or the pipe guard - touch it with your foot.

 

tried them but it still rattles. oh and i dont have a pipe gaurd lol (burnt my leg a few times though)