Since we're speculating about what goes on in the minds of previous owners (aka who-the-hell-knows, in some cases!), here's my guess:
There was a modification called the "Hodge Mod" named after its "inventor" aimed at improving the sound of the 90s series Nighthawk mufflers. It involved drilling out the rivets in the rear baffle plates, removing the baffle assembly as a unit and drilling a series of holes in the internal pipe. There seemed to be several pet theories that the size, number and location of the holes made differences in the sound, allowing it to be "tuned" to the owner's preference. There were several You Tube variations of the process, mostly of "techniques" for removing the baffles (e.g. vice grips, rebar, pipe wrenches and various other butchering methods). The modified baffle assembly was then replaced and pop-riveted back together. It was supposed to make the bike sound more Harley-ish, I guess, but wound up just making a louder Honda. The idea has fallen out of favor. Don't see it referred to much anymore. Your PO probly saw one of those clips and thought to try it, but gave up after drilling that hole. So, if yours has only one small hole, you probably dodged a bullet (!) On Friday, March 16, 2018 at 1:03:26 AM UTC-4, pdx...@gmail.com wrote: > So, on my 84 CB650sc right side muffler, the PO seems to have drilled a > small hole right in the center of the baffle. Just on the right side, not > the left... I have mine wrapped up in plastic in the shed so I "borrowed" a > photo off the googles. > The red dot represents the approximate location and size of the hole. It's > crudely drilled so I don't think it was made that way. Why would someone do > this? Thoughts? > > > <https://lh3.googleusercontent.com/-CSddXweh9I4/WqtPoBYBnrI/AAAAAAAAAS8/cZJaXQiCsncqkpXuKUsqS5cQ_9MtCfKuACLcBGAs/s1600/muff%2Bsample.jpg> > Hope everyone is having a good day.... > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to nighthawk_lovers+unsubscr...@googlegroups.com. To post to this group, send email to nighthawk_lovers@googlegroups.com. Visit this group at https://groups.google.com/group/nighthawk_lovers. For more options, visit https://groups.google.com/d/optout.
