[poppawiggly]

well i found the cause of my popping out exhaust, the back of my air cleaner housing where the air box hooks on is cracked and some one has tried to fix it before so now i need a used air cleaner housing for it .... a 1999 honda shadow ace deluxe if anyone knows where i can buy a used on ..... please

 

[Critter]

Try this: https://www.google.com/#q=1999+honda+shadow+ace+deluxe+air+cleaner+box

 

[SemiFast]

Congrats, you found the problem. :thumbsup:
Well, it sounded like it could be caused by a lean condition, but I really didn't expect it to be on the air box side.

 

[GatorJoe]

First place to look is Exhaust Leak, then Intake .. Neither of those then are probably Running Lean ..