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Offline OKZ

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Re: Kawi fan
Reply #10 on: July 19, 2017, 03:55:21 PM
*Originally Posted by zed9 [+]
Apparently you can buy an Arrow header and mate it to the stock silencer. Which is unusual but it does give it a unique sound. For such an arrangement I wonder what tuning is needed if any.
Over in the Modification section there is a video showing just such a thing by member BamAustian.

I too like a quiet bike somewhat for courtesy to my neighbors as I live in a tight neighborhood and I get up to ride early. (Though they don't seem to mind their dogs barking at all hours. LOL).
But also I like quiet so the cops don't hear you coming.

I've been in touch with Bam and he stated he did not like the sound of the OEM final muffler with the header. He stated that it was particularly loud (and not a pleasant sound) right around highway cruising speeds with motor operating at 4-5k rpm. For this reason it has caused me to shy away from using the header with the OEM final muffler. I'll let BamAustin chime in on this one some more.

My thought was to pick up a used OEM header, cut off just the pre-muffler (leave the cat) and then have a mid-pipe made up to the OEM final muffler. Hope was that with the OEM header being smaller tube diameter and with the cat in place that it will free up some weight and open up some sound without being too much. That's the thought anyway. Now if I can just get a hold of a used header I'll give it a shot.
Technology: Man's ability to make simple things complicated.

Offline Kes

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Re: Kawi fan
Reply #11 on: July 19, 2017, 07:17:39 PM
Welcome OKZ enjoy your new ride , had me a Gpz1100 when the lawason rep was out back in 84 then had a zrx1200 from 02/08 did some serious modding on it was a nice tool . :002:
DT175, CD185, CB400,GS850,GPZ1100,GS1000,CB900, KLR650,GSX100EFE,xt250,GSXR750, GSXR1100, SP180,XV650, XR250, GasGas 250,ZRX1200,DRZ400,ZX6R,VNB750, Aprilia Shiver, XV950,CB1000R, Z900R.

Offline OKZ

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Re: Kawi fan
Reply #12 on: July 19, 2017, 07:36:16 PM
*Originally Posted by Kes [+]
Welcome OKZ enjoy your new ride , had me a Gpz1100 when the lawason rep was out back in 84 then had a zrx1200 from 02/08 did some serious modding on it was a nice tool . :002:

Ah yes the GPZ line, Those were really closer to looking like what Lawson rode back in the day. But the ZRX was more up to date and had nice bits on it. Wow! brings back the memories. Thanks for the welcome.
Technology: Man's ability to make simple things complicated.

Offline Kes

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Re: Kawi fan
Reply #13 on: July 19, 2017, 07:57:34 PM
New I had a pic somewhere.

JMC swinger
TMR carbs
Twin can setup
ZX9R forks
Ohlins shocks
GSXR rad.
etc etc
Last Edit: July 19, 2017, 08:00:37 PM by Kes
DT175, CD185, CB400,GS850,GPZ1100,GS1000,CB900, KLR650,GSX100EFE,xt250,GSXR750, GSXR1100, SP180,XV650, XR250, GasGas 250,ZRX1200,DRZ400,ZX6R,VNB750, Aprilia Shiver, XV950,CB1000R, Z900R.

Offline OKZ

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Re: Kawi fan
Reply #14 on: July 19, 2017, 08:00:04 PM
*Originally Posted by Kes [+]
New I had a pic somewhere.

That is one beautiful bike, especially like the color!
Technology: Man's ability to make simple things complicated.

Offline Cazzy_R

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Re: Kawi fan
Reply #15 on: July 19, 2017, 08:12:04 PM
Awesome looking bike. Impressed.
That does not look like an off the shelf exhaust.  :062:
Tighten it 'til it strips then back it off half a turn.

Offline Kes

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Re: Kawi fan
Reply #16 on: July 19, 2017, 08:38:22 PM
*Originally Posted by Cazzy_R [+]
Awesome looking bike. Impressed.
That does not look like an off the shelf exhaust.  :062:

No sourced it from Japan along with the carbs,only other known bike at the time with the pipes was a forum member in Ireland.
DT175, CD185, CB400,GS850,GPZ1100,GS1000,CB900, KLR650,GSX100EFE,xt250,GSXR750, GSXR1100, SP180,XV650, XR250, GasGas 250,ZRX1200,DRZ400,ZX6R,VNB750, Aprilia Shiver, XV950,CB1000R, Z900R.

Offline zed9

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Re: Kawi fan
Reply #17 on: July 19, 2017, 08:47:15 PM
*Originally Posted by OKZ [+]
I've been in touch with Bam and he stated he did not like the sound of the OEM final muffler with the header. He stated that it was particularly loud (and not a pleasant sound) right around highway cruising speeds with motor operating at 4-5k rpm. For this reason it has caused me to shy away from using the header with the OEM final muffler. I'll let BamAustin chime in on this one some more.

My thought was to pick up a used OEM header, cut off just the pre-muffler (leave the cat) and then have a mid-pipe made up to the OEM final muffler. Hope was that with the OEM header being smaller tube diameter and with the cat in place that it will free up some weight and open up some sound without being too much. That's the thought anyway. Now if I can just get a hold of a used header I'll give it a shot.
I read BamAustians reply as well. I'll not do it per his review.
Bypassing the breadbox may be a good idea but still you'll need an end can. Also, sometimes Kawasaki uses double wall pipes on their headers. My ZRX still has the stock exhaust and the headers are double walled. I doubt the z900 has them. The entire stock ZRX exhaust system weighs in at 32 lbs.

Finding used parts for this bike will take some time. You might try contacting members that have already swapped them out.