Sounds of my 79 Kz750 Twin

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11 Jun 2006 18:17 #53767 by cnyl
Sounds of my 79 Kz750 Twin was created by cnyl
We've been messin with tuning my carbs found that my boots were cracked allowing a vac leak. We went up on the main jets. I'm popping when reving it off idle
This is where i'm at. Take a listen tell me what you think.

Reving
media.putfile.com/Kz750-Rev


Idle
media.putfile.com/Kz750-Idle

Post edited by: cnyl, at: 2006/06/11 21:18

Post edited by: cnyl, at: 2006/06/11 21:19

1982 KZ1000 M2 CSR
North Port, FL

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11 Jun 2006 18:19 #53769 by OKC_Kent
Replied by OKC_Kent on topic Sounds of my 79 Kz750 Twin
The links need work, I can't get anything. :(

Works now!! ;)

Post edited by: OKC_Kent, at: 2006/06/11 21:20

Oklahoma City, OK
78 KZ650 B2 82,000+ miles

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11 Jun 2006 19:34 #53781 by steell
Replied by steell on topic Sounds of my 79 Kz750 Twin
The bike is only running on one cylinder at both idle and revving :)

I know the sound well, I actually rode my 80 750 twin on one cylinder when I first got it running, just wanted to see if it would do it :)

Which side exhaust pipe is not getting hot?

Post edited by: steell, at: 2006/06/11 22:34

KD9JUR

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11 Jun 2006 20:37 #53800 by pumps
Replied by pumps on topic Sounds of my 79 Kz750 Twin
I think it is so cool I'm listening to your bike off the web! Ok so Im a geek!

Check out our site. kcvjmc.org
1977 Yamaha XS650
2000 Kaw W650
2 KZ440 LTDs , a 79 KZ400H and an 83 Belt Drive

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12 Jun 2006 07:47 #53900 by cnyl
Replied by cnyl on topic Sounds of my 79 Kz750 Twin
steell wrote:

The bike is only running on one cylinder at both idle and revving :)

I know the sound well, I actually rode my 80 750 twin on one cylinder when I first got it running, just wanted to see if it would do it :)

Which side exhaust pipe is not getting hot?<br><br>Post edited by: steell, at: 2006/06/11 22:34


Hmmmmm. When I adjust both pilot screws they both make a difference. Let me check again.

1982 KZ1000 M2 CSR
North Port, FL

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12 Jun 2006 08:03 #53903 by Biquetoast
Replied by Biquetoast on topic Sounds of my 79 Kz750 Twin
cnyl wrote:
Hmmmmm. When I adjust both pilot screws they both make a difference. Let me check again.[/quote]

Is it possible that the recording mic was right next to one of the exhausts (if it's two-into-two), so it only picked up the one?

..I don't know, I can't listen to it on Linux, it's apparently a Windows-formatted file... :(

(1.) '75/'76 KZ400D - Commuter
(2.) '78 KZ750B3 Twin - Commuter
(3.) '78 KZ750B3 Twin - Commuter
(4.) '75 KZ400D - Sold
kz750twins.com

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12 Jun 2006 08:12 #53906 by cnyl
Replied by cnyl on topic Sounds of my 79 Kz750 Twin
It's got a 2 into 1 on it. I just checked the headers and they are both hot but the right side is hotter. The mic was about 2 feet away from the pipe.

1982 KZ1000 M2 CSR
North Port, FL

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12 Jun 2006 08:14 #53907 by Biquetoast
Replied by Biquetoast on topic Sounds of my 79 Kz750 Twin
cnyl wrote:

It's got a 2 into 1 on it. I just checked the headers and they are both hot but the right side is hotter. The mic was about 2 feet away from the pipe.


What RPM do you idle at?

(1.) '75/'76 KZ400D - Commuter
(2.) '78 KZ750B3 Twin - Commuter
(3.) '78 KZ750B3 Twin - Commuter
(4.) '75 KZ400D - Sold
kz750twins.com

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12 Jun 2006 08:15 #53909 by got12narow
Replied by got12narow on topic Sounds of my 79 Kz750 Twin
Don't claim to know much (just learning,) but my 77 seems to give the same popping. Only upon initial/cold starting. I've dug through the archives a bit, and found that if your boot from the air box to the carbs is leaking, then your running too rich? I think. I checked mine, and it is in fact torn. I haven't yet replaced them, but mine evens out and stops backfiring once it warms up.:)

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12 Jun 2006 08:28 #53914 by cnyl
Replied by cnyl on topic Sounds of my 79 Kz750 Twin
According to the tach i'm running at 1000 or a hair over. For some reason the idle screw won't lower the rpm
anymore than it is.

1982 KZ1000 M2 CSR
North Port, FL

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12 Jun 2006 09:03 #53921 by steell
Replied by steell on topic Sounds of my 79 Kz750 Twin
Remove the spark plugs and post what they look like (#1 and #2).

A history of the bike and what you have done so far would help a lot :)

KD9JUR

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12 Jun 2006 12:35 #53976 by cnyl
Replied by cnyl on topic Sounds of my 79 Kz750 Twin
Hey steell,I pulled the plugs, the #2 looked normal but #1 was carbon fouled. So I cleaned it and put in the #2 cyl.(swapped).
It's running on both.:woohoo:
That seemed to be my problem. Runs great now I almost am afraid to do a sync.. Might mess it up.:laugh: I'll post another sound clip.

Oh..... The spouts that stick out of the intake boots, Do they need to be joined with a hose or plugged off separately?

Thanks all.:woohoo:

Post edited by: cnyl, at: 2006/06/12 15:39

1982 KZ1000 M2 CSR
North Port, FL

Check out my band
www.myspace.com/tukrhill

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