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Cb250 forks help

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bacon
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Joined: 09 Jan 2009
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PostPosted: 21:02 - 28 Dec 2009    Post subject: Cb250 forks help Reply with quote

Hey, got a 1993 cb250n here, and im trying to remove the bolt at the bottom of each fork leg so i can remove the upper part and in turn change the oil seals

But when i try to undo the bolt it just spins, my workshop manual suggests putting the cap and spring back on, but this doesnt seem to help and it continues to spin without loosening off

Is there another way to remove and replace the oil seal? Or am i doing something retarded tying to get the bolt out

Cheers guys!
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Ed Case
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Joined: 01 Mar 2009
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PostPosted: 21:43 - 28 Dec 2009    Post subject: Re: Cb250 forks help Reply with quote

bacon wrote:
Hey, got a 1993 cb250n here, and im trying to remove the bolt at the bottom of each fork leg so i can remove the upper part and in turn change the oil seals

But when i try to undo the bolt it just spins, my workshop manual suggests putting the cap and spring back on, but this doesnt seem to help and it continues to spin without loosening off

Is there another way to remove and replace the oil seal? Or am i doing something retarded tying to get the bolt out

Cheers guys!


Hi Bacon, No, you're doing it right. Put the spring back in, clamp the chrome fork leg or slider carefully but firmly in the jaws of say a Workmate or equivalent, wooden jaws, not steel !, insert your Allen key into the bolt inside the bottom of the slider and strike it sharply with something like an old pair of pliers anti-clockwise and keep doing it, it should undo. Don't use a hammer or anything too heavy because it probably won't work, what you need is speed of turning the bolt not weight !. This has worked for me for years.
Let us know how you get on, best of luck. Happy New Year.
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Shreddie
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Joined: 20 Nov 2009
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PostPosted: 22:47 - 28 Dec 2009    Post subject: Reply with quote

What I do for things like that is get a broom stick (sharpened/shaped a bit at the end so it wedges into the dooberyferkin inside the fork) place the fork over the top of it, push down hard then undo the bolt. Works every time for me.
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bacon
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Joined: 09 Jan 2009
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PostPosted: 18:39 - 29 Dec 2009    Post subject: Reply with quote

Shreddie wrote:
What I do for things like that is get a broom stick (sharpened/shaped a bit at the end so it wedges into the dooberyferkin inside the fork) place the fork over the top of it, push down hard then undo the bolt. Works every time for me.


I tried this, and no luck at all, still keeps spinning, looking down the fork i can see what looks like a washer or something, but the broom stick doesnt really grip anything even with a fairly sharpened point to go through the washer or whatever it is

I really have no idea how to get the fecking thing off! Got my bro holding it (no vice), me with the allen key/socket (tried both), tried hitting it sharply to undo it as well as trying with the broom at the same time, but no luck their either Sad

no garage today had time to try it for me either, all i want is this bolt undone on each fork!!
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crackpotterpi...
Renault 5 Driver



Joined: 15 Nov 2009
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PostPosted: 19:16 - 29 Dec 2009    Post subject: Reply with quote

if you are careful and you have access you can use an airgun with a hex allen socket,the shock should undo the bolt...............hope this helps
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1990 jc20 nsr125-sold,2003 cg 125-sold currently no bike.........might get another 2 stroke me thinks much more fun
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temeluchus
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Joined: 01 Oct 2008
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PostPosted: 13:07 - 30 Dec 2009    Post subject: Reply with quote

A REALLY long extension bar, with a socket to fit in the top of the damper. If its like ones ive encountered before the top of the damper has a female hex, so you will need something like a massive allen key. One way to improvise this is to find a box spanner and drive it over a socket, then weld or braze it in place.

There is probably a honda tool to do it. If its anything like the one for my old Gixx 11 its not expensive either.

The bolt is no boubt seized in there after the almost two decades of corrosion, and honda probably used thread lock as well X-D
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temeluchus
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Joined: 01 Oct 2008
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PostPosted: 13:32 - 30 Dec 2009    Post subject: Reply with quote

Bit of googling:

https://www.dansmc.com/forktool1.jpg

borrowed from here

https://www.dansmc.com/forks.htm
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