suspension problems


Information and questions on GL1100 Goldwings (1980-1983)
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wbetheajr
Posts: 65
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Location: Archdale, NC
Motorcycle: 1982 gl1100i interstate

suspension problems

Postby wbetheajr » Tue Aug 25, 2009 8:47 am



my 82 keeps bottoming out when I ride 2 up even though I have 57 lbs of air in it, getting ready to tear down the air ride system and find the problem. We went riding over the weekend in the mountains and ended up letting the wife ride with someone else because everytime I hit a dip in the road mine went to the bottom and that made it a little hard to handle especially in the curves. Anyone else have this problem?



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MSGT-R
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81 GL1100 (gone)

Re: suspension problems

Postby MSGT-R » Tue Aug 25, 2009 9:27 am

Yes, my 81 did the very same thing. I switched over to Progressive Suspension and it totally went away (so did the wobble). The bike will ride slightly higher too.

Don't waste your time rebuilding that old crap, spend a couple of extra dollars and get the newer updates along with some new fork springs;. Along with a forkbrace, it will handle like a totally different bike.
Don't spook the road sheep.

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WingAdmin
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Re: suspension problems

Postby WingAdmin » Tue Aug 25, 2009 9:28 am

If you've got 57 psi in the rear suspension and you're still bottoming out, then you've got issues with your springs. You might want to source a set of Progressives and replace them. Be careful running that high pressure AND bottoming out - if it is your springs that are weak, you are at risk of blowing out the seals in your rear shocks, and then you've got another problem altogether.

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wbetheajr
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Re: suspension problems

Postby wbetheajr » Tue Aug 25, 2009 10:32 am

what is the recomended weight capacity for the 82 wing? My wife and I together weight in around 425 lbs not counting our gear we carry, is that too much on the shocks? Will the progressive air shocks support more than the stock shocks? This is really getting to be a problem but I have worked through a lot of other ones putting this bike together.

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wbetheajr
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Location: Archdale, NC
Motorcycle: 1982 gl1100i interstate

Re: suspension problems

Postby wbetheajr » Tue Aug 25, 2009 10:38 am

Started on the air ride system today, checked air pressure first and it was still at the same pressure it was when I checked it Friday night. Checked the junction box and air lines and they are clear, no blockages. Took the shocks off and put some weight on each shock and depressed them down, so they are not froze and the shock feels pretty stiff, no oil apparent anywhere on the shock so the seals should be good. with the shocks pumped up off the bike you can't depress them at all but on the bike you can push them to the bottom. Where do I go now?

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MSGT-R
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Re: suspension problems

Postby MSGT-R » Tue Aug 25, 2009 10:47 am

Don't spook the road sheep.

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wbetheajr
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Re: suspension problems

Postby wbetheajr » Tue Aug 25, 2009 11:10 am

Thanks MSGT, I already have that part number and I called and talked to a tech there and he recommended the same thing. I just can't get any guarantees that these will solve my problems but I guess I am going to have to chance it. I found them at Phat Performance for 308 dollars. guess I will order them so I can have my bike back together by Labor Day Weekend.

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WingAdmin
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Re: suspension problems

Postby WingAdmin » Tue Aug 25, 2009 11:13 am

I've had my GL1100 loaded up to about that much (with bags, etc) and my 416 Progressives never even flinched, they rode just like they always do. I think they will solve your problem.

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wbetheajr
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Re: suspension problems

Postby wbetheajr » Wed Aug 26, 2009 1:16 pm

How do you measure the shocks, overall length or center to center on the mounting holes? According to the chart on the progressive website my shocks are suppose to be 13 inches, measuring from center to center on my old shocks they are only 12.5 and 13 3/4 overall deflated off the bike. Now I found a slightly used set of progressive air shocks on ebay that are for a GL1500 which according to the chart the only difference is they are 13.5 where mine calls for a 13. How does everyone feel about putting the GL1500 shocks on my GL1100? this should solve my overweight problem. Hoping to get some good opinions here. Thanks

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MSGT-R
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Re: suspension problems

Postby MSGT-R » Wed Aug 26, 2009 1:27 pm

The part number I looked up on their site is for an 82 GL1100. Longer shocks are going to make the rear ride higher. A half inch doesn't sound like much until you put it at the end of a swing arm..
Don't spook the road sheep.

BladeRunner9
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Motorcycle: 1987 GL1200 Aspencade
1984 GL1200 Standard
1988 GL1500

Re: suspension problems

Postby BladeRunner9 » Sun Aug 30, 2009 3:08 pm

In my 87A owners manual ( and on the frame ), the all up rated load is only 390lbs!
Having read some horror stories lately about the Dunlop D402 on some late model Wings as well as some Harleys suddenly loosing air pressure causing in some cases serious injuries and a few deaths. I'm wondering why my rear tire is rated for 908lbs, my front is rated 770lbs, that's a combined weight of 1678lbs;
Minus the listed weight of 745lbs for the 87 Aspencade=933 lbs :? So, how is it only 390lbs?
Hopefully there is a "built-in" safety factor in those load limits listed in the manual. :o
BTW, the rear tire on my bike is new, the previous owner had it installed; It's a Dunlop D404..I haven't heard anything about this model#...and I hope it stays that way! ;)

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WingAdmin
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Re: suspension problems

Postby WingAdmin » Mon Aug 31, 2009 12:35 pm

The load rating is more than just the tires. Suspension and brakes have to be taken into account, as well as the overall handling of the bike at all speeds with different loads. The tires may well be able to handle 933 lbs, but you had better plan WAY ahead when you want to stop, and I wouldn't guarantee that it's going to handle safely in turns, or at higher speeds. You'll likely bottom out the suspension on bumps as well.

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wbetheajr
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Re: suspension problems

Postby wbetheajr » Thu Oct 08, 2009 6:08 pm

I put on a set of progressive manual shocks and done away with the rear air suspension. Now I am not hitting bottom but It is so low I am rubbing up in the fender and cutting up my rear tire. Looks like it is not mean't for us to ride together. I was looking at the breakdown of the swing arm and I see a part that I can't find on my bike. Come someone tell me where number 3 in the break down is?


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WingAdmin
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Posts: 17047
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
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1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: suspension problems

Postby WingAdmin » Thu Oct 08, 2009 7:41 pm

That part is deceptive - I have no idea why they include it on the swingarm exploded diagram. It is the brake stopper - it is what keeps the brake caliper bracket from moving forward. If you look at the top of the bracket that the rear brake caliper is mounted to, it is fastened to the brake stopper with a castle nut and a cotter pin:

Image

It fastens to the swingarm at the front.

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wbetheajr
Posts: 65
Joined: Mon Aug 10, 2009 12:01 pm
Location: Archdale, NC
Motorcycle: 1982 gl1100i interstate

Re: suspension problems

Postby wbetheajr » Fri Oct 09, 2009 1:19 am

Got it. Thanks a lot. This suspension thing is getting to me. Just can't figure out why we can jump on the Volusia and ride everywhere as small as it is and the Goldwing will not support us. Just one of those things I guess.




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