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CBR 1000F "Hurricane" 1987-1996 CBR 1000F

fork spring change

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  #1  
Old 09-06-2018, 01:54 PM
the fly's Avatar
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Question fork spring change

Hello

I have a question

It is for my Honda CBR1000F year 1993

I am going to change my front fork springs with hyperpro progressive springs SP-HO10-SSA012.

I bought them and got a manual for the installation.

The manual says that I can not use the 55mm standard preload bush.

I do not understand which bushing they are talking about.

Has anyone already done this or does anyone know which bushing is involved?

 
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Old 09-07-2018, 12:41 PM
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It's #4, the spacer. Your new springs must be longer than the factory ones.
When you take the top retaining cap off, #18, be careful, its under slight pressure.
Keep downward force on the nut while pulling up on the tube when removing the nut or
things will fly around your shop when it is suddenly free.
 
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Old 09-08-2018, 04:16 PM
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Originally Posted by TimBucTwo View Post

It's #4, the spacer. Your new springs must be longer than the factory ones.
When you take the top retaining cap off, #18, be careful, its under slight pressure.
Keep downward force on the nut while pulling up on the tube when removing the nut or
things will fly around your shop when it is suddenly free.
How do the progressief springs go in compresed windings down or up ?
 
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Old 09-10-2018, 09:38 AM
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When installing progressive springs, they recommend the tighter coils to be up top.
However, I doubt it makes a difference. The spring rate would stay the same in either direction.
I have wondered why they would want the tighter coils up top. The tighter the coils the more mass,
the more mass, the higher of center of gravity.
I doubt anyone would be able to tell the difference in center of gravity if they were flipped but sometimes people
argue about the most stupid things.
 
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Old 09-10-2018, 01:11 PM
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Originally Posted by TimBucTwo View Post
When installing progressive springs, they recommend the tighter coils to be up top.
However, I doubt it makes a difference. The spring rate would stay the same in either direction.
I have wondered why they would want the tighter coils up top. The tighter the coils the more mass,
the more mass, the higher of center of gravity.
I doubt anyone would be able to tell the difference in center of gravity if they were flipped but sometimes people
argue about the most stupid things.
I put them with the tighter coils down the ones that came out were the same had the coils down to .

Was a litle bit of work for my first time but all went wel also changed my frontwheel bearings.
 
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Old 09-13-2018, 04:18 PM
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Now i put hyperpro sring in the front fork with the tight coils down i took the upper springcollar out as suggested by hyperpro .

so all thats left in the forks is the compleet fork damper which is connected to the forktube cap and bolted with the bolt on the underside of the fork i put the oil in and the spring and screwd the forktube cap on .

I have no leaks anymore because i also changed the seals .

I hoop this is the right way anybody nows its mounted right like this ?
 
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