Too much front fork pressure


Information and questions on GL1200 Goldwings (1984-1987)
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GWLDL
Posts: 23
Joined: Fri Apr 02, 2010 4:37 pm
Location: Minneapolis, MN
Motorcycle: 1984 GL1200 Aspencade
1983 VT500c Shadow
1980 CanAm QualifierIII

Too much front fork pressure

Postby GWLDL » Mon Jun 24, 2013 1:00 am



84 Aspy Gl1200. I rebuilt the front forks ( a long with a lot of other items). All new seals. New fluid. Cleaned the pressure selector switches and valve. The forks are 100% better than they were.
Problem is-that there seems to be too much pressure in the forks now. When fill the front forks the reading will go over the 2 Bars that are for the front. It will go to 3 or 4 bars. I can lower it to get back to 2 bars, but when I fill the back shocks to normal (for 2 up riding). The front will now be over 2 bars again.
I did re-fill the forks with the recommended amount for re-build 11.1 fl.oz. I set both the Antidives to 2.0.
It rides really stiff, and is jumpy at highway speeds.

Looking for some insight as to where I messed up-that might be causing this. Any help would be great. thanks.



User avatar
GWLDL
Posts: 23
Joined: Fri Apr 02, 2010 4:37 pm
Location: Minneapolis, MN
Motorcycle: 1984 GL1200 Aspencade
1983 VT500c Shadow
1980 CanAm QualifierIII

Re: Too much front fork pressure

Postby GWLDL » Tue Jun 25, 2013 9:48 pm

Bump. Any ideas? Thanks.

User avatar
GWLDL
Posts: 23
Joined: Fri Apr 02, 2010 4:37 pm
Location: Minneapolis, MN
Motorcycle: 1984 GL1200 Aspencade
1983 VT500c Shadow
1980 CanAm QualifierIII

Re: Too much front fork pressure or oil?

Postby GWLDL » Thu Jun 27, 2013 8:20 pm

Okay, after some serious searching of sites (this and others). I think that I might have Progressive Springs. The PO never said anything about them-not surprised.
The Honda Manual shows that there should be 2 Springs in the forks for the 84 Gl1200 Aspy.
When I did the rebuild-there was only one spring in each fork. Both were wound tighter at one end (I put that end down-that's how they were when I took them apart).
I also remember thinking that there was way too little oil that came out of them. The manual says to fill to 11-12 oz of oil when rebuilding. I used ATF.
They are not leaking (like before I rebuilt)... but I have that issue with too much pressure and very stiff front forks. I'm thinking that I might drain some of the new oil out and see if I can get back to proper levels, and handling.
Did I put too much oil back in on rebuild for Progessives? Anyone know how much oil should be put back in-if you have Progressive springs?
Thanks for any input. gwldl

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virgilmobile
Posts: 7663
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: Too much front fork pressure

Postby virgilmobile » Fri Jun 28, 2013 9:10 am

Because the springs are not OEM,you might find you no longer need any air.My 83 was that way.
I tried 2 psi with progressives.Too stiff.




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