400ex exhaust QUESTION?

[thefuzz]

my son has a 2002 400ex with a Curtis Sparks exhaust on it the pipe and mufler was put on it about 3 years ago. it is MUCH louder now then it was! but Now all of a sudden it is breaking or blowing out the pop-rivets that hold the mufler to the pipe?? I have put rivet after rivet back in it but the seem to keep coming out ?? ANY HELP APRECIATED !!

THANKS! thefuzz65@yahoo.com

[ridein'red7]

try a washer behind the rivet maybe? and is probly louder do to packing i sold and blown out

[thefuzz]

warsher on the inside or outside?? where do ya get packing to put back in it ??

[Scro]

You're packing is gone. It is burned and blown out over time. You should be able to get packing from any motosports shop.

[thefuzz]

ok will the packing CAUSE THE presure to be that great to blowout the rivets ???

[ridein'red7]

i would put a washer on the inside with maybe a lil bit longer rivets and get fmf pillow packing

[exrpnt]

same thing happened to my exhuast. i drilled out all the old rivets, re packed it (a good how to video http://www.youtube.com/watch?v=KOLddz9mxrw)
using a hand rivett gone even though it says you should use an air riveter, then i put a hose clamps (like the one that holds ur air filter on) over the rivets around the exhuast so that they couldnt get loose no matter what, and its been working great ever since.

[Scro]

Be sure you are using steel rivets. Aluminum rivets will not hold up.