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Old 03-27-2011, 06:28 PM   #1
240sx4u OP
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Any of you guys done the full alignment on airhead forks?

I know I haven't posted a thing since last year. I got the bike mostly done and lost motivation since it was getting cold and I didn't want to register it right before winter. The final step that was needed was for me to do a proper fork alignment. I am finally getting around to this now.

Have any of you guys used this; http://w6rec.com/duane/bmw/fork/chapter6.html

I have 1/16" glass and the tapping thing works, but I am finding that depending on how I hold the glass I can manipulate which corners "click". It is also possible my forks are darn near straight and all my worry is for no reason.

Thoughts? This is ultra tedious and don't want to do it twice. I am really hoping to be riding this bike this summer.

Thanks guys, happy to be back in action!

Evan
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Old 03-27-2011, 06:45 PM   #2
jtwind
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Evan, Use plate glass it's flat! 1/16" thick stuff isn't and it will give alittle on top of it. I use 1/4" or 3/8" plate.
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Old 03-27-2011, 06:51 PM   #3
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Crap, I wish I had known there was a difference when I got this glass. I have two pieces of 1/16" glass for no reason now! lol


Hope all is well Jeff!

Evan
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Old 03-27-2011, 09:32 PM   #4
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I am guessing you mean a full alignment per that article? If that's what you mean, no. I have aligned a lot of forks and have never found the need to do half of what that article suggests but I don't straighten bent front end components, I replace them with new. It's hard enough to get them set up when everything is straight!
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Old 03-28-2011, 05:39 AM   #5
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Mine are straight as far as I can tell at least. I will be doing it per the article, I don't have the experience to know if it's good enough without going into a tank slapper at 60mph! lol

It is good to know that if I don't get it flawless per the article, odds are it will work fine.

Evan
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Old 03-28-2011, 06:11 AM   #6
jtwind
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In a pinch I've used the bottom of one of my woodworking jack planes. I have some that I've lapped the bottom and they are very flat. They are also long and 3-4 inches wide so work perfectly.

I'm doing good Evan. PM me your phone number some time. I'm building a dirt bike out of a /5 and wanted to pick your brain on welding up exhausts. I remember that stainless one on your Nissan.

Most of the fork alignment stuff is commom sense, with the springs out and no tire on just see if the move easily up and down. You want very little resistance, smooth, no sticky spots etc. If they dont' move easily it's time to figure out if something is bent, or they are out of plane, or angle in or out from each other etc. It's almost always worth checking them and getting them aligned.
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Between two motorcycles the simplest (DW)
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Old 03-28-2011, 06:26 AM   #7
ozmoses
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Quote:
Originally Posted by supershaft View Post
I am guessing you mean a full alignment per that article? If that's what you mean, no. I have aligned a lot of forks and have never found the need to do half of what that article suggests but I don't straighten bent front end components, I replace them with new. It's hard enough to get them set up when everything is straight!
240sx4u-

From what I've seen on the 'net, supershaft takes exception to Ausherman methodology.

In his "defense", that methodology does hail from the /2 and particularly the /5 era...apparently there were some manufacturing/engineering issues w/ early telescopic forks.

The truth probably lies in the middle.

Start w/ the "stiction" test; how do they slide?

Get yourself a smallish mirror to check fork plane, it's inexpensive & readily available.

I don't know the history of your bike, but unless you have known issues, a severe impact for example, the full Procedure may not be necessary at all.

Good luck.

Edit, I see as I was typing, JTWind made a similar suggestion; IMO his info is good!
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