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    Muzzy Exhaust

    Hi gang,

    I just picked up an 88 tempest grey in great condition, <20K miles. It has a Muzzy slip on, which sounds really good, except is a little too loud for my taste. Looking into the exhaust, there is a tube and some packing material along the length of the can, but the hole is open with nothing plugged into it. Is this how it's supposed to be? Or am I missing some piece? Is there a "db killer" type device to make it a little quieter, or should I just pick up a stock exhaust?

    Thanks, Greg
    Oakland, CA

    #2
    Pictures worth a thousand words ...
    "Hawk Porn" http://picasaweb.google.com/11124379...eat=directlink 1990 NT650-Penske 8981, Race-tech Springs & Gold Valves, Steve Lenac six-piston caliper & EBC rotor,SS Brake lines Ft / Rear lines through SSA ,VFR brake lever, F2 front wheel, F-120/70 R-160/60 Dunlop Roadsmart, Full-Supertrapp Exhaust, Stage 1 Jet kit, K&N Filter, Corbin Seat, Pro-Tec Clip-On's/ Past Rides...1986 VFR700F2 Interceptor / 1979 Yamaha Rd400 Daytona Special

    Comment


      #3
      I want an essay.

      If you were looking for a support group you're barking up the wrong tree. This place is fulla enablers dude. - Shooter77us

      The bitterness of low quality lingers long after the thrill of a low price has gone. - RacerX450

      Comment


        #4
        Originally Posted by SPA View Post
        Pictures worth a thousand words ...
        Alright, then. Here's the exhaust in question, the hole, and with the flash:

        IMG_2690.JPGIMG_2686.JPGIMG_2689.JPG

        Thoughts???
        Attached Files

        Comment


          #5
          Just by design , with such a large diameter baffle, even with a fresh fiberglass packing it's going to be one of the louder muffler cans. But also some of the least back pressure. A substitute can with a DB killer would certainly be less Db but nothing it going to be quite as quiet or mello as the OEM setup.
          "Hawk Porn" http://picasaweb.google.com/11124379...eat=directlink 1990 NT650-Penske 8981, Race-tech Springs & Gold Valves, Steve Lenac six-piston caliper & EBC rotor,SS Brake lines Ft / Rear lines through SSA ,VFR brake lever, F2 front wheel, F-120/70 R-160/60 Dunlop Roadsmart, Full-Supertrapp Exhaust, Stage 1 Jet kit, K&N Filter, Corbin Seat, Pro-Tec Clip-On's/ Past Rides...1986 VFR700F2 Interceptor / 1979 Yamaha Rd400 Daytona Special

          Comment


            #6
            there really is not much room for the baffles to absorb much sonic energy as the area is so thin, and the can is metal, so I'm guessing you'll want a new system. If you add your general location in your profile, folks can decide if you are close enough to offer you a trade on something they might have in the Hawk-in-a-Box / parts stash.

            Comment


              #7
              No baffles in that can.....probably no packing left either.Simple job to pull it apart and repack it.New pop rivets when finished.

              Comment


                #8
                We JUST re-packed out can a week or so ago. 69Falcon can tell you the brand, but the packing we goot made a drastic diffeance and or can is less the 6" long.
                IMG_20190303_140839.jpg
                Don't spend money and buy, spend time and learn.

                Comment


                  #9
                  Originally Posted by 6 View Post
                  We JUST re-packed out can a week or so ago. 69Falcon can tell you the brand, but the packing we goot made a drastic diffeance and or can is less the 6" long.
                  IMG_20190303_140839.jpg
                  Bike looks good.Is that my old black frame? The one I gave Chuck?

                  Comment


                    #10
                    Originally Posted by 6 View Post
                    We JUST re-packed out can a week or so ago. 69Falcon can tell you the brand, but the packing we goot made a drastic diffeance and or can is less the 6" long.
                    THERMAL ZERO MPK1 Ceramic Muffler Packing Material kit for 2-Stroke 4-stroke ATV Motorcycle Dirt Bike Exhaust Silencer Spark Arrestor Muffler Packing Repack Universal Wrap

                    Originally Posted by behindthetimes View Post
                    Bike looks good.Is that my old black frame? The one I gave Chuck?
                    Yup. We hacked out all the crossmembers to make it into the racebike.
                    '89 Hawk a.k.a. The RallyHawk (my son's now!) | '89 Hawk a.k.a. The Deuce | Spare Parts/Dented Learner Bike | '13 Tacoma | '69 Falcon (currently getting reassembled! )

                    I've spent most of my money on women, beer, cars and motorcycles. The rest of it I just wasted.

                    Comment


                      #11
                      Originally Posted by 6 View Post
                      We JUST re-packed out can a week or so ago. 69Falcon can tell you the brand, but the packing we goot made a drastic diffeance and or can is less the 6" long.
                      IMG_20190303_140839.jpg
                      Do they have sound checks at the tracks you run ?

                      Just curious , we had sound checks at Sears Point , Laguna Seca And Thunder Hill, ( SCCA Sports car racing ) I couldnt tell you the nums every track or weekend was different. But they usually setup on the main stright close to start finish, my car was almost always close to or over, but during practice we just lift as we go by the sound checks, also we had a 4" 90 degree exhaust tip we fabbed, that we would point the opposite way from their mics. Easy to swap the other direction on another track.

                      Before we had the fitting, one weekend I got a sound check fail and wouldn't be allowed to race if it wasn't corrected before end of practice. I went back to the garage and took a Coke can and punched a bunch of holes in it and shoved it up the tailpipe. I made it through sound check taking it really easy and ... I had a baffle failure shortly into the race when the can fell out. Hey ... it just happens
                      Last edited by SPA; 04-17-2019, 04:28 PM.
                      "Hawk Porn" http://picasaweb.google.com/11124379...eat=directlink 1990 NT650-Penske 8981, Race-tech Springs & Gold Valves, Steve Lenac six-piston caliper & EBC rotor,SS Brake lines Ft / Rear lines through SSA ,VFR brake lever, F2 front wheel, F-120/70 R-160/60 Dunlop Roadsmart, Full-Supertrapp Exhaust, Stage 1 Jet kit, K&N Filter, Corbin Seat, Pro-Tec Clip-On's/ Past Rides...1986 VFR700F2 Interceptor / 1979 Yamaha Rd400 Daytona Special

                      Comment


                        #12
                        Originally Posted by 69Falcon View Post
                        Yup. We hacked out all the crossmembers to make it into the racebike.
                        Where did that little can come from?

                        Comment


                          #13
                          Originally Posted by behindthetimes View Post
                          Where did that little can come from?
                          It originally was a full size Kerker I'd picked up in one my parts bin buys. We took the band saw to it.
                          '89 Hawk a.k.a. The RallyHawk (my son's now!) | '89 Hawk a.k.a. The Deuce | Spare Parts/Dented Learner Bike | '13 Tacoma | '69 Falcon (currently getting reassembled! )

                          I've spent most of my money on women, beer, cars and motorcycles. The rest of it I just wasted.

                          Comment


                            #14
                            Originally Posted by SPA View Post

                            Do they have sound checks at the tracks you run ?

                            :
                            Luckily no. If you are willing to put up with it then so are they.
                            Don't spend money and buy, spend time and learn.

                            Comment


                              #15
                              Originally Posted by 6 View Post

                              Luckily no. If you are willing to put up with it then so are they.
                              WHAT? Canít hear you over the YouTube channel.

                              Comment

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