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Indexed Steering? Or badly needed bearings?

  • thejameswilliam
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12 Apr 2020 13:29 #823171 by thejameswilliam
Indexed Steering? Or badly needed bearings? was created by thejameswilliam
I'm spending this quarantine weekend (and probably next weekend, and the weekend after) rebuilding my kz550 LTD from the frame up. I got to the triple tree this afternoon and noticed the steering sorta snaps into place. I never noticed it while riding, but without forks on it, it's very apparent.

There seems to be indexed steering. Is this the case? Or am I desperately in the need for new bearings?

kz550
thejameswilliam

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12 Apr 2020 14:03 #823175 by Nessism
Replied by Nessism on topic Indexed Steering? Or badly needed bearings?
Indexed means you need new bearings. All Balls has some reasonably priced bearing and seal kits that should fix things up.
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12 Apr 2020 14:05 #823176 by Nebr_Rex
Replied by Nebr_Rex on topic Indexed Steering? Or badly needed bearings?
Get new bearings, your old ones are shot.


.

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


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12 Apr 2020 14:05 - 12 Apr 2020 14:05 #823177 by 650ed
You need new bearings. The best type you can install are tapered roller bearings. They are FAR better than normal ball bearings because the rollers provide much more bearing surface than ball bearings. I installed them on my KZ650-C1 and was amazed at how great they perform. The folks at the link below provide everything you need. Ed

www.allballsracing.com/steering.html

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 12 Apr 2020 14:05 by 650ed.
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12 Apr 2020 14:33 #823182 by kevski
Replied by kevski on topic Indexed Steering? Or badly needed bearings?
All balls tapered rollers, have installed them on all my bikes, much better than stock ball bearings.
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  • DOHC
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12 Apr 2020 15:35 #823186 by DOHC
My Z1R had the same index. It made the bike feel like it wanted to fall into low speed turns. I used new stock parts and it made a big difference.

I installed tapered rollers on a kz650, and was surprised by how thin the top bearing race was in the head tube. It seemed like it didn't have enough of a lip to ever get it out again. Has anyone else noticed this? Maybe it was specific to the kit I used.

'78 Z1-R in blue , '78 Z1-R in black, '78 Z1-R in pieces
My dad's '74 Z1
'00 ZRX1100

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12 Apr 2020 16:22 #823188 by 650ed
I didn't notice a thin bearing race. Here are pics of mine (KZ650-C1). Ed




1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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  • DOHC
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12 Apr 2020 20:07 - 12 Apr 2020 20:07 #823198 by DOHC
Yeah, those look like the set I installed. The ID of the race is larger than the ID of the middle part of the steering head. So there is no lip on the race that extends into the tube. The factory races have an ID that is a much smaller than the ID of the steering tube, which allows you to tap or pull on the back side of the race to get it out. How would you remove those races?




'78 Z1-R in blue , '78 Z1-R in black, '78 Z1-R in pieces
My dad's '74 Z1
'00 ZRX1100
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Last edit: 12 Apr 2020 20:07 by DOHC.

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12 Apr 2020 20:15 #823199 by 650ed
I hope I never need to remove them, but if I do I might either tack weld something to them that I can then pull out and/or cut them in two so they would be easier to remove. Ed

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

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13 Apr 2020 06:43 #823215 by Rick H.
Replied by Rick H. on topic Indexed Steering? Or badly needed bearings?
I have seen where some will weld a bead onto the face of the bearing race on two opposite sides and use that to put a punch on to drive out the race. The other option is to try and split the race with a grinder, but that can be difficult and time consuming. Normally the race doesn't have to actually be split because it kind of falls into itself as you are cutting the slot. You need some very good grinding bits to cut a race though.
Rick H.

Rick H.

1977 Kawasaki KZ-1000A1

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  • Scirocco
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13 Apr 2020 07:47 #823227 by Scirocco
Replied by Scirocco on topic Indexed Steering? Or badly needed bearings?
Welding a bolt or better a washer onto the outer bearing race.

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  • thejameswilliam
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13 Apr 2020 08:24 - 13 Apr 2020 08:24 #823231 by thejameswilliam
Replied by thejameswilliam on topic Indexed Steering? Or badly needed bearings?
So, after getting this pulled apart I can see that these bearings haven't been changed since the 1981 factory floor. It's bad. I haven't quite gotten into getting the bearing race out. I'm researching methods. So, let's do a pole. Which of the following methods would you recommend?


  • Weld a bolt to the race in order to get a pull on it
  • Cut the race with a small Dremel or grinding tool.
  • Hammer the race out with a long pipe or bar from the opposite end.
  • Buckle up and invest in a press.
  • It's a shop job, leave it to the pros.
  • Screw it, just get a new frame.
  • Other?.

kz550
thejameswilliam
Last edit: 13 Apr 2020 08:24 by thejameswilliam.

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