Easiest way to increase volume of exhaust.

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09 Oct 2020 12:35 #836473 by bSzemanKZ440
Easiest way to increase volume of exhaust. was created by bSzemanKZ440
Hi all,
Earlier this week I picked up a KZ440-B1, and within those 3 short days with it, I bought another KZ, a KZ650 CSR.
I love cruising on the 650, I'm a new rider and this is my first good running bike, only downside is that I noticed its pretty quiet. Now, I don't want it screaming loud, but loud enough to hear it while in a car would be nice.
So how would I go about making it a little louder? Is it hard to remove the baffles on it, or the packing? I have spare Harley Sportster oem mufflers, should I attempt to put those on, or just buy a different exhaust all together? Mainly looking for the cheapest way I can, but willing to spend money if needed.
Thanks for the help.

1980 KZ440-B1
1981 KZ650 CSR

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09 Oct 2020 22:08 #836508 by TexasKZ
Replied by TexasKZ on topic Easiest way to increase volume of exhaust.
If the factory system is in really good shape, you would be better off selling it and installing a new Delkevic system.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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10 Oct 2020 06:46 #836524 by martin_csr
Replied by martin_csr on topic Easiest way to increase volume of exhaust.
You could drill holes into the muffler end caps. Choose a drill bit that matches an available plug size, in case you change your mind or something. The muffler in the pic was already drilled, but I re-drilled the holes & tapped some threads for some 1/4" brass plugs. I don't know how the system sounded without the plugs.

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10 Oct 2020 07:20 #836527 by TexasKZ
Replied by TexasKZ on topic Easiest way to increase volume of exhaust.
You could also mount a battery powered amplifier and speakers to the rear seat and tape a microphone on the end of each muffler.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
The following user(s) said Thank You: Nessism, gordone

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10 Oct 2020 07:23 #836528 by TexasKZ
Replied by TexasKZ on topic Easiest way to increase volume of exhaust.

martin_csr wrote: You could drill holes into the muffler end caps. Choose a drill bit that matches an available plug size, in case you change your mind or something. The muffler in the pic was already drilled, but I re-drilled the holes & tapped some threads for some 1/4" brass plugs. I don't know how the system sounded without the plugs.

A Norton anthology. Nice to see some quality reading material at yourr house, Martin.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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10 Oct 2020 07:44 - 10 Oct 2020 07:44 #836532 by 650ed
Replied by 650ed on topic Easiest way to increase volume of exhaust.

TexasKZ wrote: If the factory system is in really good shape, you would be better off selling it and installing a new Delkevic system.


Exactly! Punching holes in an otherwise decent stock KZ650 exhaust is a mistake. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 10 Oct 2020 07:44 by 650ed.

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10 Oct 2020 09:20 #836549 by Warren3200gt
Replied by Warren3200gt on topic Easiest way to increase volume of exhaust.
And charge taxi fares. Win/win


Z1000J2 somewhat modified!

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10 Oct 2020 09:22 #836550 by TexasKZ
Replied by TexasKZ on topic Easiest way to increase volume of exhaust.
:laugh: :laugh: One of my favorite videos.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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10 Oct 2020 11:27 #836562 by bSzemanKZ440
Replied by bSzemanKZ440 on topic Easiest way to increase volume of exhaust.
Thank you all for the suggestions! I don’t know why I didn’t think about just selling the stock one, it is in pretty perfect condition.

1980 KZ440-B1
1981 KZ650 CSR

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10 Oct 2020 14:01 #836570 by Nessism
Replied by Nessism on topic Easiest way to increase volume of exhaust.
I've never heard a 650 CSR exhaust but I just love the sound of my 750's exhaust. It has an awesome growl but is relatively quiet. Quiet means I can use lots of throttle without attracting attention. It just amazes me how many idiots blast round town with a loud exhaust advertising they are busting the law by speeding.
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10 Oct 2020 14:19 #836572 by martin_csr
Replied by martin_csr on topic Easiest way to increase volume of exhaust.
By bSzemanKZ440: Thank you all for the suggestions! I don’t know why I didn’t think about just selling the stock one, it is in pretty perfect condition.

Just an FYI if you plan on selling it. The KZ650-CSR & KZ750H Ltd have the exact same muffler system, and it can probably be used on a number of other 650/750 models but a guy may need to fab muffler brackets.

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11 Oct 2020 00:19 #836596 by bSzemanKZ440
Replied by bSzemanKZ440 on topic Easiest way to increase volume of exhaust.
Actually I just cleaned the carbs and put it all back together and it somehow sounds a lot more healthier, has a good growl, kinda content with it now haha
Thank you all for your suggestions

1980 KZ440-B1
1981 KZ650 CSR

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