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27 Jun 2011 22:18 #459834 by badrhino
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So I got my bike up on some milk crates to take the front wheel off and what not. Decided to turn the forks just for the heck of it. When turning the handlebars left and right you can notice that the forks want to somewhat return to the center position. The triple tree turns freely and doesn't feel like there is stiction anywhere but it does seem to want to return the center position with a weird "spring back" feeling.

Does that mean my Steering head bearings are shot?:blink:

Funny thing is I did not notice this when the bike was on the ground.:unsure:

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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27 Jun 2011 23:08 #459846 by testarossa
Replied by testarossa on topic Fork Question
Yep, sounds like your neck bearings are getting notchy. Probably a good time to convert to tapered roller style neck bearings. They are a good upgrade. You probably just have the very early stages or your neck bearings weren't very tight. That would be my guess as to why you didn't notice it on the ground.

1978 KZ1000 A2 Click--->Build Thread
2004 ZX-10R
2007 Harley Sportster 1200
2020 Harley Street Glide Special
Angola, IN

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28 Jun 2011 00:06 #459864 by 650ed
Replied by 650ed on topic Fork Question
testarossa +1. Steering should be dead smooth lock to lock. Tapered roller bearings are definitely the ticket. Ed

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

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28 Jun 2011 00:19 #459870 by RonKZ650
Replied by RonKZ650 on topic Fork Question
Yea the bearings take a beating, the balls dig into the races and since 95% of riding you are basically pointed forward, this beating makes for a detent at straight ahead position. Does it hurt anything is the question? Well I thought it might so replaced for tapered bearings in 2 KZ650s and my KZ1000MKII. Did I notice a huge improvement? Not really. Now I ride a well worn 77 KZ650 with detent dented races and don't see need to waste time and money to repair.

321,000 miles on KZ's that I can remember. Not going to see any more.

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28 Jun 2011 00:58 #459880 by badrhino
Replied by badrhino on topic Fork Question
I don't plan on riding it a whole bunch this summer, just trying to get it all back together finally so I can ride it for the first time. I might just replace the bearings at a later date if it is safe to run it like this for a while.

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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28 Jun 2011 03:26 #459906 by mtbspeedfreak
Replied by mtbspeedfreak on topic Fork Question
Dumb question, these are tapered bearings, right? www.z1enterprises.com/detail.aspx?ID=2780

They are tapered, so I'm thinking so. :pinch:

2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!

If it has tits or tires, it'll give you problems!

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28 Jun 2011 05:10 #459911 by btchalice
Replied by btchalice on topic Fork Question

mtbspeedfreak wrote: Dumb question, these are tapered bearings, right? www.z1enterprises.com/detail.aspx?ID=2780

They are tapered, so I'm thinking so. :pinch:


yep those are tapered

Terry Meyer / Wichita KS
76 kz900 w/1000 motor TWZTD
I am not driving too fast, I'm flying too low.

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28 Jun 2011 07:47 #459925 by Kidkawie
Replied by Kidkawie on topic Fork Question
Are you sure a cable or brake line isnt binding up and pulling it back?

1975 Z1 900
1994 KX250 Supermoto
2004 KX125
The following user(s) said Thank You: wireman

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28 Jun 2011 12:20 #459956 by badrhino
Replied by badrhino on topic Fork Question

Kidkawie wrote: Are you sure a cable or brake line isnt binding up and pulling it back?


Might be, I'll check. I was wondering that myself.

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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28 Jun 2011 15:36 #459989 by 531blackbanshee
Replied by 531blackbanshee on topic Fork Question
when i wrecked my z1r and had it off the ground repairing it i had the same problem.

except it would damn near snap back to center.

the rollers never roll far enough to get into the next divot tho.

if you know your neck bearings are dented and you dont replace them that is your choice.

have you ever felt how a trailer with a rusty ball and hitch tries to push you around?

have any family that cares whether you go down or not?

just sayin,neck bearings are cheap.

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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28 Jun 2011 18:19 #460008 by badrhino
Replied by badrhino on topic Fork Question
Yeah they pretty much snap back (ever so slightly)when it gets close to the center position.

How hard is it to change them, is it a simple undo and replace?

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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28 Jun 2011 18:21 #460009 by 531blackbanshee
Replied by 531blackbanshee on topic Fork Question
easily done in an evening no prob.

leon

skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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