weird noise on the muffler side

[schols44]

hi guys,

Yesterday, I had a long trip with my honda elite, about 20 minutes. On my way back, I noticed a weird noise on the right side of my scooter (muffler side) that happens only when I'm at high speed (above 20mph). We can't hear this noise when I ride the scooter slowly or at a stop.
I tried to record it, but we don't hear it that much on the video.

http://www.youtube.com/watch?v=f2TAsa6_sD0

Does anyone know where this might come from? Hopefully, it's not the crank shaft because I'm not sure I can change it by myself :s

Thanks

[swimmingfree]

not trying to be a ??? you need to put another screw on the muffler to hold it in place first then see if that is it ...
swimmingfree

[schols44]

Yeah i know. I lost it a while ago. I made sure the screw that I have was tied enough. I'm 100% sure the noise does not come from the screw missing. But thank you tho

[swimmingfree]

then you shood pull the cover off and see what is going on in there .....
swimmingfree

[schols44]

I had a leak between the muffler and whatever it is connected to. I untighted the 2 bolts, moved a little bit the muffler and made sure the 2 bolts were tight well. I also opened the crank case, but I didn't find anything special in there. Afterwards, I prayed the god, started my scooter and took a little ride on it. The noise was gone !!!!

Do you guys think the noise could come from a very small space at the connection of the muffler, which caused the leak?