Fork spread


Information and questions on GL1100 Goldwings (1980-1983)
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Dave N
Posts: 31
Joined: Fri Jul 12, 2013 5:25 am
Location: Garrettsville, Ohio
Motorcycle: 1980 GL1100 Goldwing
1977 Suzuki GS550

Fork spread

Postby Dave N » Mon Apr 28, 2014 6:40 pm



I decided it was time for a new front tire on my 1980 Gold Wing, I read the how to first and began the procedure. Everything went good but as I loosen the axle nut I noticed that the forks started to spread apart. My question is how much should they spread apart and is this normal? The two other bikes I have owned both Suzuki's, I never noticed this happening when changing front tire.



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virgilmobile
Posts: 7645
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Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
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82 GL1100 I
83 GL1100 I
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84 GL 1200 I

Re: Fork spread

Postby virgilmobile » Mon Apr 28, 2014 10:23 pm

None,zero,no.

Forks must be parallel and there is a proper sequence of tightening the bolts and nuts.
Before I secure the front wheel back on....I slowly let the front end down till the fork tubes lightly rest on the axle for alignment then tighten them by the book.

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Dave N
Posts: 31
Joined: Fri Jul 12, 2013 5:25 am
Location: Garrettsville, Ohio
Motorcycle: 1980 GL1100 Goldwing
1977 Suzuki GS550

Re: Fork spread

Postby Dave N » Tue Apr 29, 2014 5:30 am

Thanks for the reply Virgilmoble, now if there is supposed to be zero spread when loosing the axle nut what would cause this to happen? They spread aprat about a 1/2", not sure if one fork moved or if they both moved. I know when I put the front tire back on that it will draw it back together and move them back in line again. I am just trying find out if there is something else I should be looking at now.

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virgilmobile
Posts: 7645
Joined: Sun Sep 19, 2010 5:39 pm
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Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Fork spread

Postby virgilmobile » Tue Apr 29, 2014 7:00 am

Let's assume for the moment that the forks are exactly parallel and the slide bushings are fine.The distance between the axle mount should not move when the wheel is attached.
Things to check.I know that the spedo gearboxes are different and spacers.There may be a mismatch.
When assembled,the front wheel and axle will set perfectly in the fork tube without spreading it.
You either have a bent fork or the wrong spacer/gearbox.
Any more than a few thousands of a inch will create a sticking suspension.

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Dave N
Posts: 31
Joined: Fri Jul 12, 2013 5:25 am
Location: Garrettsville, Ohio
Motorcycle: 1980 GL1100 Goldwing
1977 Suzuki GS550

Re: Fork spread

Postby Dave N » Tue Apr 29, 2014 10:53 am

I will not have to spread forks apart to remount wheel I will have to have to draw them in toward wheel when I tighten axle bolt. I did not have any movement when the front end was together. It was only when I started to loosen axle to remove wheel that they spread apart as I loosen axle nut. This was on the last part of the how to remove front tire on the how to articles.

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virgilmobile
Posts: 7645
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Fork spread

Postby virgilmobile » Tue Apr 29, 2014 11:25 am

On assembly,the axle is secured/tightened to the wheel ...off the bike..not after it's mounted to the fork.
After you turn the axle by hand to check for binding and spedo gearbox operation...You then set the entire assembly into the fork mount .
The spacers are specific to that year and align the wheel/rotor into the caliper housing.
There should never be any distance change at the end of the fork tubes.
Both mounts should line up perfectly on the axle.Any variations in axle length are compensated on the right side...
The left side has the spedo gearbox and should fit perfectly into the bottom of the fork slide...The right side has no outside collar to allow for alignment and should be the last clamp tightned.
After there snugged up,then you measure the clearance at the caliper to the housing....
If there off,adjustments are made by shifting the axle....different spacers...

User avatar
Dave N
Posts: 31
Joined: Fri Jul 12, 2013 5:25 am
Location: Garrettsville, Ohio
Motorcycle: 1980 GL1100 Goldwing
1977 Suzuki GS550

Re: Fork spread

Postby Dave N » Fri May 02, 2014 6:36 pm

Will I got the new tire mounted up and while I had the tire off replaced bearings and dust seals. What I thought was the forks spreading apart was having the front tire off the ground and having the shaft clamp off on one side off wheel and the other side loose as I loosen axle nut I think it was tilting down and binding axle nut as I loosen it making it look like they were spreading apart. I put it back together like Virgilmoble said and everything fell in place. Thanks for the reply and the help on this Virgil. Like I read many times by others on this site there is a lot of help and knowledge here.

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virgilmobile
Posts: 7645
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Fork spread

Postby virgilmobile » Fri May 02, 2014 7:39 pm

I'm glad to hear there were no problems.post anytime.Even with pictures.




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