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Old 07-01-2008, 07:12 PM   #1
v4lu3s
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steering bearing on cbr f4

Anyone replace their steering bearings at home? I work in a Kawasaki shop, so I can take my bike in and do it there, but then that means I am missing out on paying work...or I can do it at home, and i just wanted to know if at home is too much hassle without a press...
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Old 07-01-2008, 07:48 PM   #2
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String her up to the rafters, pull the rack, disassemble the forks and bring that piece into work(for lower race.) Do your bearings press into the collar?

Knock it out through the center with an extention/hammer and press it in with a studded rebar rode and two large washers/nuts throught the frame collar. Had a wrecked one I disassembled but was a GSXR and it was in pieces.
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Old 07-01-2008, 08:48 PM   #3
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one set of races is pressed in the collar, the other set is pressed on the stem. lots of fun! i only have just under 3k miles as well, but the bike had been down hard at 1900 miles (before i got it). yesterday i got the lovely clunk when braking...i did tighten up the adjustment a little while i am waiting for parts to come in though, that seems to help a lot actually, the adjusting nut was loose...
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Old 07-01-2008, 08:51 PM   #4
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W the bike off the ground do you have alot of movement forward and back in the forks from the bearing?
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Old 07-01-2008, 08:57 PM   #5
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Quote:
Originally Posted by Caligonetx View Post
W the bike off the ground do you have alot of movement forward and back in the forks from the bearing?

so little that i might even be imagining it. before i tightened up the adjustment nut it would make a clunk when i held the brakes and pushed forward on the bike. Now there is a barely felt tick when i do that. i need to check the force needed to turn the bars though, i do not have nay specialty tools at home...
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Old 07-01-2008, 09:03 PM   #6
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Do you have a repair book for it? what year we can look online. The busa's needed to be adjusted cause it was a hair loose. It walked you through the whole thing and all my movement went away and the steering wasn't stiffened either so I knew I wasn't wearing down the bearings.
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Old 07-01-2008, 09:08 PM   #7
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yeah i got the manual in pdf....the procedure for tightening them uses a spring scale to determine how much force is used to turn the fork, i may tighten it up a bit more though since the triple tree comes off so fast. when i tightened it up today, the lock nut was less than finger tight, so i did a 1/4 turn on the adjsuter nut and tightened the lock nut down a lot more tightly...
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Old 07-01-2008, 09:11 PM   #8
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The adjuster nuts need to have a preload on them when the nut gets torqued... that's what takes up the extra movement in the assembly and seats the bearings in the races...

worse comes to worse, you tighten it a little too much and then need to replace them in the future but you'll have the parts... And the adjustment you could do in the parking lot at your shop/work fairly quickly without using a lift or taking up shop room...
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Old 07-01-2008, 09:27 PM   #9
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thanks for talking me through this, i worked on cars for years, and just started riding and took a job at a local service garage at the same time. So my diagnostic skills are still pretty weak....though I am good at fixing the problem (when i figure it out!). I am going to tighten it up a bit more tomorrow at work, i am riding to houston tomorrow night and then to lufkin on friday, so i want it working right...i am going to get the bearing set to keep on hand though.
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Old 07-01-2008, 09:32 PM   #10
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Cool sounds good... Im gonna PM you my number... Never know when I might have a question too...

Im a mastertech at BMW Houston North at 1960; and I live in the woodlands so Im not far from you...

As for diagnostics, remember everything you see is the effect not the cause... usually there's something thats effecting everything together and its usually the simplest solution. Im a visual person myself... so I need to try to imagine it...

GL w it... text if you need anything; Like blue locktite or a torque wrench so you don't lose ur nuts...(hahaha... sorry, couldn't help it...)
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