KZ1000 Top End Noise??

Drooz
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29 Dec 2013 19:36 #616672 by Drooz

KZ1000 Top End Noise?? was created by Drooz

I've got a noisy top end that sounds like it might be cam chain related. I listen to every other Z1/KZ that I have the chance to, and mine is way noisier than any other I've listened to.

It's a stock engine and was only pulled apart to check it before it went back on the road 5 years ago. There aren't a lot of miles on it, only a total of 30,000 km.

Any ideas or comments? I figure we should pull it apart and see what's going on there. :huh: :cheer:

'77 kz1000 (zx10r) Modified/Street
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650ed
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29 Dec 2013 19:43 - 29 Dec 2013 19:44 #616674 by 650ed

Replied by 650ed on topic KZ1000 Top End Noise??

This may be a dumb question, but have you adjusted the cam chain tensioner using the instructions in the Kawasaki Service Manual? Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

Last edit: 29 Dec 2013 19:44 by 650ed.

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Drooz
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29 Dec 2013 19:58 #616676 by Drooz

Replied by Drooz on topic KZ1000 Top End Noise??

Haha! No... not a dumb question at all!! :cheer:

Ya, I've followed the recommended cam chain adjustment procedure to a tee!

That was my first thought as well.

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Patton
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30 Dec 2013 03:14 - 30 Dec 2013 03:29 #616698 by Patton

Replied by Patton on topic KZ1000 Top End Noise??

If not already done, would perform a complete tune-up (new plugs, valve clearances, etc.), and sync the carbs.

Even where everything else is perfect, an out of sync carb can result in significant cam chain noise.

Good Fortune!

1973 Z1
KZ900 LTD

Last edit: 30 Dec 2013 03:29 by Patton.

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turboking
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30 Dec 2013 05:14 - 30 Dec 2013 05:15 #616702 by turboking

Replied by turboking on topic KZ1000 Top End Noise??

I would pull the tensioner first to see if it's at the end.... :dry: before tearing your engine down :blink: Is the noise constant or worse when you rev and then close throttle? If you neglect to keep the cam chain properly adjusted the front cylinder rubbing block will break from chain slap on deceleration... Possible bad idlers, broken front cylinder rubbing block, bad cam chain adjuster roller , bad/at limit tensioner.. cam chains stretch , roller's , idlers and cam chains do go bad :unsure:

Good luck , HTH

2005 Kawasaki mean streak
2000 325 H.P. mcXpress turbo Hayabusa
1979 kz 1000 mk II ATP turbo
1975 Z1 960 cc Mr. Turbo
1975 Z1 1428 big block ATP turbo
1976 Kz900 1103 cc ATP turbo
1985 GS 1150E
1983 GS 1100E
1997 Suzuki Bandit 1200S
2001 Kawasaki EX 500 Ninja
1972 Honda cb750 (836cc turbo)

Last edit: 30 Dec 2013 05:15 by turboking.

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Powerstroke_fan
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30 Dec 2013 05:36 - 30 Dec 2013 05:38 #616704 by Powerstroke_fan

Replied by Powerstroke_fan on topic KZ1000 Top End Noise??

Looks like turboking pretty much has it covered. i would guess either needs tuned up or bad or wore rollers or bad worn tensioner.

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Last edit: 30 Dec 2013 05:38 by Powerstroke_fan.

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Drooz
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30 Dec 2013 07:14 #616716 by Drooz

Replied by Drooz on topic KZ1000 Top End Noise??

Thanks for all the good input guys! I knew you'd come through! :cheer:

The issue is mostly at idle and just off idle. it seems to "clear" as the revs climb.

I never thought about the carb sync possibility!

I have a set of BS34's ready to replace the tired old VM28's that are currently on there. It could very well be a carb sync issue.

Thanks again fellas!! :kiss: I'll get at it and report back in a few weeks!

A very Happy New Year to you all!!

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sbc1320
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30 Dec 2013 07:16 #616717 by sbc1320

Replied by sbc1320 on topic KZ1000 Top End Noise??

Yeap carbs out of sync and pods will give you a little more noise.

1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..

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turboking
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30 Dec 2013 07:33 #616719 by turboking

Replied by turboking on topic KZ1000 Top End Noise??

like others stated , hopefully a carb sync issue :unsure:

keep us posted :blink:

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KZ1000 Top End Noise??

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