Yet another cam chain tensioner history!
- KZJOE900
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Re: Yet another cam chain tensioner history!
11 Feb 2013 11:21donthaveakawman wrote: I don't care what kzjoe says about you patton that is a good idea, I thought about ordering one of those before and I never did.
Maybe you have a leaking plug wire which is arcing causing a cylinder to cut in and out.
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76 KZ900
81 XJ550H SECA (Current Project)
82 XJ550R SECA
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72 CB450
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- undiablo
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Re: Yet another cam chain tensioner history!
11 Feb 2013 15:26
I have considered the manual cam chain tensioners... but (I might be wrong) I want to keep the automatic thing. Somehow I tend to think if the engineers of Kawasaki put it, it might be for something.
Another possibility is, since I am with some spare time, make my own tensioner.
I think it could take a couple of machining hours in the garage. No CNC here, lathe is manual.
Another possibility is, since I am with some spare time, make my own tensioner.
I think it could take a couple of machining hours in the garage. No CNC here, lathe is manual.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- Patton
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Re: Yet another cam chain tensioner history!
11 Feb 2013 17:01Same here. And well-satisfied with the stock tensioner when it's performing as designed.undiablo wrote: I have considered the manual cam chain tensioners... but (I might be wrong) I want to keep the automatic thing. Somehow I tend to think if the engineers of Kawasaki put it, it might be for something....
The after-market version may be inadvertently over-tightened, with undesirable results.
Imo, a good carb sync is more likely to significantly reduce cam-chain noise, regardless of the type tensioner that's fitted.
Good Fortune!

1973 Z1
KZ900 LTD
KZ900 LTD
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- wireman
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Re: Yet another cam chain tensioner history!
11 Feb 2013 17:18Where have I heard all of this before? :laugh: :laugh: :laugh: :laugh: :laugh:Patton wrote:Same here. And well-satisfied with the stock tensioner when it's performing as designed.undiablo wrote: I have considered the manual cam chain tensioners... but (I might be wrong) I want to keep the automatic thing. Somehow I tend to think if the engineers of Kawasaki put it, it might be for something....
The after-market version may be inadvertently over-tightened, with undesirable results.
Imo, a good carb sync is more likely to significantly reduce cam-chain noise, regardless of the type tensioner that's fitted.
Good Fortune!
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.
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- donthaveakawman
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Re: Yet another cam chain tensioner history!
11 Feb 2013 21:47
Isn't there a locknut on the factory tensioner?
How hard is it to install the new one, does the chain rail guide fall in the crankcase if i do something wrong?
my guess is that I would turn the engine to where the chain snugs it up against that side of the motor.
I ordered the ape thing from z1 but can't find a instructions file online.
How hard is it to install the new one, does the chain rail guide fall in the crankcase if i do something wrong?
my guess is that I would turn the engine to where the chain snugs it up against that side of the motor.
I ordered the ape thing from z1 but can't find a instructions file online.
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- Patton
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Re: Yet another cam chain tensioner history!
11 Feb 2013 22:10
APE CAM CHAIN TENSIONER INSTALLATION INSTRUCTIONS:
Click here > www.aperaceparts.com/tech/tensioners.html
Good Fortune!
Click here > www.aperaceparts.com/tech/tensioners.html
Good Fortune!

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KZ900 LTD
KZ900 LTD
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- martin_csr
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Re: Yet another cam chain tensioner history!
11 Feb 2013 23:31 - 12 Feb 2013 11:32
It seems like someone here on KZR said that the automatic type can be converted to a manual tensioner if you have access to a machine shop?
As for the automatic tensioners, I read somewhere that on the big Kaws, a problem can arise when the throttle is closed at high speed. Apparently, the tensioner can back itself out or something, causing the timing to get messed up, resulting in bent valves. It's something I vaguely remember. There's probably a more precise explanation somewhere.
As for the automatic tensioners, I read somewhere that on the big Kaws, a problem can arise when the throttle is closed at high speed. Apparently, the tensioner can back itself out or something, causing the timing to get messed up, resulting in bent valves. It's something I vaguely remember. There's probably a more precise explanation somewhere.
Last edit: 12 Feb 2013 11:32 by martin_csr.
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- zukdave
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Re: Yet another cam chain tensioner history!
11 Feb 2013 23:36APE Jay wrote: Just put a KT1000 Manual Camchain Tensioner
Rob at Z1 put me one in the mail should be here in the morning.
$50 buck's worth of insurance it's a no brainer.
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63" wheel base.
ZX750A1 motor.
Wiseco 810cc kit.
Zukiworks racing ported head.
VM 29 smooth bore's.
Dyna 2000 Ign. w/Dyna mini coil's
APE cylinder stud's and nut's.
APE valve spring's.
APE Track King clutch.
V/H KZ1000 sidewinder.
3.5x18 laced to a KZ1000 disk hub.
150/60/18 Shinko 006 Podium.
63" wheel base.
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- undiablo
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Re: Yet another cam chain tensioner history!
12 Feb 2013 01:32
Indeed, I applied a lot of pressure to the tensioner push rod and it went back, no matter the cross wedge stoper. Backing the push rod seems to defeat the cross wedge spring resistance. However this test was made in a bench vice. :evil:
I highly doubt the cam chain can put that much pressure to the push rod.
I highly doubt the cam chain can put that much pressure to the push rod.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- donthaveakawman
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Re: Yet another cam chain tensioner history!
12 Feb 2013 02:41KZJOE900 wrote:donthaveakawman wrote: I don't care what kzjoe says about you patton that is a good idea, I thought about ordering one of those before and I never did.
Maybe you have a leaking plug wire which is arcing causing a cylinder to cut in and out.
I actually have seen them hit the gas tank, it has been over a year since I replaced them. I bought 6 feet of new wire that I have yet to put on. I should find spacers for them.
maybe I will do that when my new tensioner gets here. :whistle:
also painted the exhaust with barbeque paint after I took some naval jelly to it. I ran it for a couple minutes now it needs to dry more.
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- LarryC
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Re: Yet another cam chain tensioner history!
12 Feb 2013 08:51
A 6x35mm bolt and nut will make the OEM tensione work like a charm...cost under a buck

Larry C.
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- donthaveakawman
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Re: Yet another cam chain tensioner history!
12 Feb 2013 10:54
why not just take the screw out and pump some oil in there.
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