First Post rotor replacement advise
- marko1962
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First Post rotor replacement advise
10 Jul 2025 06:48 - 10 Jul 2025 12:44
Hello all, I am a new member and need some advise as to the rotor replacement process. I have a 1976KZ900 and will be installing a new rotor. I've read many of the related posts and of course reviewed my Clymer manual, but can anyone give me some tips, things to watch out for? Clymer seems to go somewhat beyond simply removing the rotor in their instructions. Overall the job does not seem to be that difficult but I have thought that before about many things.
Any advise would be greatly appreciated. I will post a pic soon of my bike.,
Any advise would be greatly appreciated. I will post a pic soon of my bike.,
Last edit: 10 Jul 2025 12:44 by Street Fighter LTD.
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- TexasKZ
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Re: First Post rotor replacement advise
11 Jul 2025 07:00 - 11 Jul 2025 07:02
Welcome aboard!
Why do you want to replace it?
I recommend getting a genuine Kawasaki factory service manual. It will have the procedures specific to your model. There may be a copy in the filebase here.
Also, be sure you have a secure way to raise the front of the motorcycle off the ground. I use an Abba Superbike stand. abbastandsusa.com/
Pay very close attention to how things come apart, especially--
1. The speedometer drive. It must be properly oriented for re-installation so that it is held in place by the lugs. If it is not installed properly, it will spin around and rip the drive cable apart and may destroy itself. It is not at all complicated, but it is really important.
2. The wheel spacers. They must be reinstalled on the proper side of the wheel and in the proper orientation, otherwise the wheel cannot be reinstalled or will be terribly off-center.
3. The axle clamps. They must be installed in a particular way and are side-specific.
4. Torque settings. The manual lists torque settings for all these various parts. Pay attention to them.
5. The rotor (disk). It is very easy to bend it or damage it in other ways, handle it with a great deal of care. Do not lay the wheel down in a way that makes the rotor contact the ground or in any way support the weight of the wheel.
6. Do not get any oil or grease on the rotor or the brake pads.That includes oily fingerprints.
Why do you want to replace it?
I recommend getting a genuine Kawasaki factory service manual. It will have the procedures specific to your model. There may be a copy in the filebase here.
Also, be sure you have a secure way to raise the front of the motorcycle off the ground. I use an Abba Superbike stand. abbastandsusa.com/
Pay very close attention to how things come apart, especially--
1. The speedometer drive. It must be properly oriented for re-installation so that it is held in place by the lugs. If it is not installed properly, it will spin around and rip the drive cable apart and may destroy itself. It is not at all complicated, but it is really important.
2. The wheel spacers. They must be reinstalled on the proper side of the wheel and in the proper orientation, otherwise the wheel cannot be reinstalled or will be terribly off-center.
3. The axle clamps. They must be installed in a particular way and are side-specific.
4. Torque settings. The manual lists torque settings for all these various parts. Pay attention to them.
5. The rotor (disk). It is very easy to bend it or damage it in other ways, handle it with a great deal of care. Do not lay the wheel down in a way that makes the rotor contact the ground or in any way support the weight of the wheel.
6. Do not get any oil or grease on the rotor or the brake pads.That includes oily fingerprints.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
Last edit: 11 Jul 2025 07:02 by TexasKZ.
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- zed1015
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Re: First Post rotor replacement advise
11 Jul 2025 07:16
Are you referring to the Alternator rotor or a brake rotor ( brake disc ) ???
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
www.kzrider.com/23-for-sale/611992-air-c...lide-mikunis?start=0
www.kzrider.com/23-for-sale/611992-air-c...lide-mikunis?start=0
The following user(s) said Thank You: Nessism
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- TexasKZ
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Re: First Post rotor replacement advise
11 Jul 2025 07:28I wondered that as well, but decided to plow ahead on my completely unfounded assumption.Are you referring to the Alternator rotor or a brake rotor ( brake disc ) ???
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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- kimchella
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Re: First Post rotor replacement advise
11 Jul 2025 11:19
Hi, it often helps when taking things apart to use your phone and take photos so you can refer back to them. Welcome from New Zealand 👍
KZ650B1 frame number 225
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- marko1962
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Re: First Post rotor replacement advise
14 Jul 2025 08:29
I apologize, should have been more clear. I need to replace the Alternator rotor, not the brake rotor. Thank you for responding though. I did order and receive the new alternator rotor from KZ Enterprises, so I am ready to start the job. Any tips and advise would be greatly appreciated. thank you.
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- Nessism
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Re: First Post rotor replacement advise
14 Jul 2025 09:04
My advice, use that Clymer manual for fire starter.
Clean out your fire pit, then rip out pages of the Clymer and crumple them up. Build a nice pile, on top of which, place small sticks, arranged in a criss-cross pattern, so air can flow between everything. Next, some thicker sticks, again, arranged criss-cross. Put a match to the Clymer pages, and you will have a roaring fire in no time!
Clean out your fire pit, then rip out pages of the Clymer and crumple them up. Build a nice pile, on top of which, place small sticks, arranged in a criss-cross pattern, so air can flow between everything. Next, some thicker sticks, again, arranged criss-cross. Put a match to the Clymer pages, and you will have a roaring fire in no time!
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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- Wookie58
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Re: First Post rotor replacement advise
14 Jul 2025 09:21
If you chose to take Nessism's advice you will find a FSM in the file-base on this site

1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
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- sf4t7
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Re: First Post rotor replacement advise
14 Jul 2025 11:52
You can also find a Factory Service Manual for your KZ900 on ebay from time to time. There are different editions for the different year ranges. (Z1, KZ900, and KZ1000).
Scotty
1974 Z1A
Yoshimura 987
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
1974 Z1A
Yoshimura 987
welded Z1 crank
Andrews 1X Cams
Delkevic 4 into 1
Superbike bars
530 conversion
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