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Discussion Starter · #1 ·
My 2001 450ES had that real loud backfire proplem (like a gun going off). It happened a couple of times each run when I was decelerating. A real nuisance when riding near residential areas during hunting season.

I, unfortunatley, took it to local dealer to see if they could remedy the problem. I should have known better! They fussed and farted with it, cleaned/adjusted carburator, adjusted valves, changed the plug, and checked the exhaust for leaks. None of this really helped!. At my insistence, they called the Honda tech line and Honda indicated it must be in the exhaust system. The dealer proceeded to cut the end of the muffler off, says he removed some "loose" baffles, and rewelded the end of the mufler back on.

Now I don't have the infrequet "gunshot" backfire, but I do have the pop-pop-pop every time I let off the gas. I'm still annoyed as they cannot fix a problem that didn't exist for the first 3 years I owned the bike.

Any suggestions as to what may be causing the pop backfire??????
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