1973 Honda CB500 four with open exhaust

Aug 12

Idle and rev with new Mac exhaust (baffle removed) and Dyna Ignition. Other mods include 550cc pistons, Web street camshaft, and high performance valve springs. Seems to run good with baffles in with just the stock jets…It runs a little rough with the baffles out but would probably be okay if I put in one size larger jets.

Duration : 0:0:27


TAB PERFORMANCE HARLEY TOURING SLASH CUT PIPE 2 1/2" BAFFLES

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Filed under: Motorcycle Exhaust Baffles

11 Responses to “1973 Honda CB500 four with open exhaust”

  1. Alemi9, on August 12th, 2009 at 1:29 am Said:

    thank man ill check …
    thank man ill check it out

  2. cyclepsycho05, on August 12th, 2009 at 1:29 am Said:

    okay…so what did …
    okay…so what did you do? you cut the mufflers off the stock exhaust system? Adding back pressure isn’t a good thing if you’re concerned with the performance. Sounds like you might have an overly rich mixture at WOT. First start by checking the timing and making sure it’s set to the proper advance…if it is you might bump it up a degree or two. If that still doesn’t do anything, then you’ll have to start messing around with different sized jets.

  3. Alemi9, on August 12th, 2009 at 1:29 am Said:

    how do i add back …
    how do i add back pressure to my bike i have a cb550 i cut the pipes do i need to adjust the carbs? longer pipes? cause wen i gas it ,, It cuts off.. idk.. thx man

  4. nicodanger13, on August 12th, 2009 at 1:29 am Said:

    You’re right.. 750 …
    You’re right.. 750 has more torque.. it’s better for a 4-wheel

  5. nicodanger13, on August 12th, 2009 at 1:29 am Said:

    I like it so much!
    …
    I like it so much!
    Now i have an original one.. but before i had a light-prepared one.. i loved it.. i miss its power..

  6. cyclepsycho05, on August 12th, 2009 at 1:29 am Said:

    Haha, that would be …
    Haha, that would be a fun project…I’d recommend the 750 four motor for a dune buggy project, though. A little more horsepower and more available go-fast parts. I’ve got a 96 civic and when I do an engine swap I want to take the engine that’s in it currently and make a fun little tube-framed street car.

  7. Turbojeep23, on August 12th, 2009 at 1:29 am Said:

    im not a huge fan …
    im not a huge fan of handa but they are good bikes. eventually id like to get a 550 four engine and build a dune buggy with it. it would sound sweet and be fast as

  8. Haroldkappers, on August 12th, 2009 at 1:29 am Said:

    nice sound!
    nice sound!

  9. flatfour65, on August 12th, 2009 at 1:29 am Said:

    Awesome sound! Do a …
    Awesome sound! Do a flyby vid with that open pipe!

  10. cyclepsycho05, on August 12th, 2009 at 1:29 am Said:

    They are not the …
    They are not the highest quality exhaust systems but they are not junk either. The build quality is decent and the powder coating looks good too.

  11. mrmcinturff, on August 12th, 2009 at 1:29 am Said:

    is the mac exhaust …
    is the mac exhaust good quality, or a cheap replacement?

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