First time on Interstate


Information and questions on GL1100 Goldwings (1980-1983)
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Wing82
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First time on Interstate

Postby Wing82 » Tue Oct 08, 2013 9:04 pm



So it's been about a month and half since I took ownership of a 82 GW interstate. It had bad brakes which I managed to fix but still can't dodge a hard shifter problem.

I have been running her on state roads and today finally took it out on the interstate a 70+ mph. It was SCARY as hell! Every time a wind gust blew, the whole bike wobbled. I had to slow down to about 60 and rode about 10 miles before taking an exit and returning home on a state road.

I am trying to figure out why would it feel so unstable. My motorcycle does have a slip stream aftermarket windshield (larger than original). I checked the wheels after I came back. Yanked on them side to side and there was no movement. I have brand new tires as well. I really feel like I am missing something. Any help?

Thanks



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JDMAG
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Re: First time on Interstate

Postby JDMAG » Tue Oct 08, 2013 9:35 pm

I have had one for about that amount of time as well, and not had it on the road at all yet. But something I have learned about is this: has anything been removed from the front? (radio speakers etc...) or has the weight changed in any way? other than the larger windshield.

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Wing82
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Re: First time on Interstate

Postby Wing82 » Tue Oct 08, 2013 11:04 pm

The only thing missing is the radio. It has the speakers still.
I didn't check the suspension air pressure though. How low does it need to be to get into trouble?

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80-GL100-INT
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Re: First time on Interstate

Postby 80-GL100-INT » Tue Oct 08, 2013 11:34 pm

I have only rode mine a few times now, just a 5 round trip to the gas station and back, trying to work out all the bugs before any longer trips. I notices a little wobble today. This evening I was checking the same things, swing arm, axle pinch bolt, front wheel, etc...Just making sure I didn't forget or miss something. I too have new tires and valve stems, but when I checked the rear tire pressure it was about 15-16 psi. so I filled it back up to about 35 psi. and came in for the night, and will recheck it tomorrow and see if it goes down any again. I didn't see anything in it. So I'm going to keep my eyes on it.

Just a thought...something to check. I've heard the valve stems have a tendency to not seal well on these.
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JDMAG
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Re: First time on Interstate

Postby JDMAG » Wed Oct 09, 2013 7:07 am

I don't know about the suspension yet. you may need to add some weight in the fairing to makeup that lost by the radio. how ever I have not tested this.80-GL100-INT may have a better point than me on the tire pressure.

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Re: First time on Interstate

Postby Wingsconsin » Wed Oct 09, 2013 11:43 am

ON the INTERSTATE....

IN traffic ?
Trucks..?
Alone on the hghway..?

Windy or still weather..?

My experience on the 1980 INterstate we had , as well as the other 'Wings I have riden a ton of miles is this...

Near semi-trucks -- be prepared to feel the blast of wind they throw off..
Even behind them the wind buffeting is awful and will make your bike feel terrible...

But if you were running solo and alone without having a draft effect from other vehicles...

Time to check your pressures, both tires and suspension and all the movinh joints like steering head, swing arm, etc.
Low tire pressure can create a heinous wobble too - especially at speed....

But for the unintiated -- traffic drafts can really be un-nerving...



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Wing82
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Re: First time on Interstate

Postby Wing82 » Wed Oct 09, 2013 1:29 pm

There was a bit of traffic. Since I reduced the speed, a lot of cars started overtaking me. It was quite unnerving. I am going to try it again today after checking the air pressures. If it still happens then could it be due to the larger wind screen?

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WINGER3
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Re: First time on Interstate

Postby WINGER3 » Wed Oct 09, 2013 2:10 pm

Wellcome to the site, I have the same windshield on my 83Asp. and rode 160mi. yesterday with 15-25 mi hr. wind with no problems up to and above 90 MPH for a very short distance. You have to make sure the dead weight which replaced the headlight assy. on your bike has not been removed, you can look behind the fairing and see that a cast iron block with what look like cooling fins is still there. If the weight is there then start with tire pressure 32F 35-40R, then go to steering head bearings of which I suspect is the problems, if the bike has over 50K mi. on it, you can check it by putting on center stand and have someone sit on it to raise the front tire or use a jack, you should be able to turn the wheel from R to L back and forth and feel only a smooth transition, if you feel like a drag or stiction of a cupped bearing that is the problem. Replace with new tappered roller bearings.

If the previus are all ok then start with swing arm, pinch bolts, dragging brakes or any thing that could be loose SA (nuts and bolts) as the tip over bars are held on by the bolts that also hold the engine to the frame. Also check by spinning with your hand the wheels to make sure that the bearings are not bad. Good luck and others will sign on to give you thair ideas as no one of us knows for sure what is the cause as there are many for this problem. :mrgreen:
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WINGER3
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Re: First time on Interstate

Postby WINGER3 » Wed Oct 09, 2013 2:17 pm

Hello again, I forgot about the radio that is missing from the fairing, that would not cause your problem, the missing cast iron dead weight would. Some have removed it to save weight and paid with there life as it would cause a wheel slapper at hight speed and a wreck. Hang in there it will take a little time but you will find the problem. :mrgreen:
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Wilcoy02
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Re: First time on Interstate

Postby Wilcoy02 » Wed Oct 09, 2013 2:58 pm

After you solve the problem: post it and all that you do so someone else can have a solution for the same problem.

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Re: First time on Interstate

Postby WingAdmin » Fri Oct 11, 2013 12:32 pm

I had a scary high speed weave that developed on my 1100 after I put new tires on it. Above 65 mph, it would start weaving from side to side regardless of what I did, and the faster I went, the stronger and more pronounced it became.

It took a couple weeks, but I eventually tracked the problem down to the swingarm. The previous owner had put the swingarm pivots in backward - left one in the right side, right one in the left side. As a result, the rear wheel had about 1/2" lateral (left to right) free play at the axle station. With the old tires, the center of the rear tire was worn flat enough that it kept the swingarm from moving. With the new tires, the rear contact patch diminished, and there was no longer enough rubber on the road to keep the swingarm stable at speed, and the result was the weave.

I removed the pivots, put them in correctly, torqued them to the correct values, and the weave was gone.

The point is, there are a ton of different things that can cause dynamic instability at speed on a motorcycle, so don't restrict your search to the windshield, front suspension, etc.

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Wing82
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Re: First time on Interstate

Postby Wing82 » Thu Oct 17, 2013 2:24 pm

So finally yesterday the weather permitted to get on the highway again. This time I check the air pressures
Front tire = 34 psi
Rear tire = 40 psi
Front shocks = 17 psi
Rear shocks = 40 psi

Now I was more weary of my actions. I took it slow from 60 to 75 mph. Bike felt a lot more stable when I was alone. But when I got into the draft of another car or if a car was overtaking me, it got bad again, pushing side to side. Finally I could ride it comfortably at ~65mph. I would push 70+ only if the road is completely clear. Does this sound normal?

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WINGER3
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Re: First time on Interstate

Postby WINGER3 » Thu Oct 17, 2013 5:26 pm

Wing82 wrote:So finally yesterday the weather permitted to get on the highway again. This time I check the air pressures
Front tire = 34 psi
Rear tire = 40 psi
Front shocks = 17 psi
Rear shocks = 40 psi

Now I was more weary of my actions. I took it slow from 60 to 75 mph. Bike felt a lot more stable when I was alone. But when I got into the draft of another car or if a car was overtaking me, it got bad again, pushing side to side. Finally I could ride it comfortably at ~65mph. I would push 70+ only if the road is completely clear. Does this sound normal?

"NO" you must check all the things we all have been telling you, otherwise you are going to have something bad happen and not walk away from it. :mrgreen:
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Joecop
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Re: First time on Interstate

Postby Joecop » Thu Oct 17, 2013 9:26 pm

Excellent advice from winger3!

You definitely have an issue.......people who ride Goldwings ride them because of how well and smooth they ride. I took mine 984 miles in one day. In traffic, mountains and some windy conditions. At no time did I feel anything like your describing.

Keep looking and please post.

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Wing82
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Re: First time on Interstate

Postby Wing82 » Thu Oct 17, 2013 10:47 pm

I have checked most of the stuff. I have the cast iron block on the forks, got new tires when I got the bike and fixed some dragging brakes. Oh boy! I guess I have my work cut or for me this weekend looking for gremlins! Will post soon.
Thanks for your replies guys.

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WINGER3
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Re: First time on Interstate

Postby WINGER3 » Thu Oct 17, 2013 11:43 pm

Hi WING82, sorry to be so sharp with you, but I'v witnessed to many riders that just died to ride and rode and died. I live in So. Ca. where more motorcycleist die every day because of bad working bikes or just don't know how to ride, I do not want to read about you. Get the bike right befor you do a bunch more test rides. I don't want to preach to you, I don't know how long you have been riding, I have over 60 years on almost every brand on the market and over 1 million miles and still riding at 72 and hope you will be too. So please take our advice and tear that bike down if you have to and make it right befor you take another test run on it, it could be your last. Something is realy wrong with that bike, keep looking you will find it. :mrgreen:
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80-GL100-INT
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Re: First time on Interstate

Postby 80-GL100-INT » Fri Oct 18, 2013 10:20 am

Wing82 wrote: I checked the wheels after I came back. Yanked on them side to side and there was no movement. I have brand new tires as well. I really feel like I am missing something. Any help?

Thanks


You can pull, push, tug..., and not feel a thing. Just because you do not feel any movement doesn't mean it's not there. When your weight and the weight of the machine is on it, it becomes a totally different animal. a few thousandths of play under load becomes a huge deal.

Another thought, and I'm sure you have checked everything, but just in case, the 3 bolts on the drive unit/swingarm, properly torqued ? The bottom inside one can be a bear to get to, especially w/ a torque wrench.
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Re: First time on Interstate

Postby Wingsconsin » Fri Oct 18, 2013 11:04 am

80-GL100-INT wrote:
Wing82 wrote: I checked the wheels after I came back. Yanked on them side to side and there was no movement. I have brand new tires as well. I really feel like I am missing something. Any help?

Thanks


You can pull, push, tug..., and not feel a thing. Just because you do not feel any movement doesn't mean it's not there. When your weight and the weight of the machine is on it, it becomes a totally different animal. a few thousandths of play under load becomes a huge deal.

Another thought, and I'm sure you have checked everything, but just in case, the 3 bolts on the drive unit/swingarm, properly torqued ? The bottom inside one can be a bear to get to, especially w/ a torque wrench.


Follow this link for interesting information regardin the final drive and proper assembly procedure....
--->> http://www.motorcycleproject.com/motorc ... _drive.swf
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Your results may vary. Universal disclaimers apply.


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Re: First time on Interstate

Postby Sagebrush » Fri Oct 18, 2013 11:45 am

JDMAG wrote:I don't know about the suspension yet. you may need to add some weight in the fairing to makeup that lost by the radio. how ever I have not tested this.80-GL100-INT may have a better point than me on the tire pressure.


You can take the entire fairing off, weight included, and not have it affect handling of the bike other than its a lot more nimble. I've done it twice now and wouldn't hesitate to do it again.

First on this one:


Then on this one:


Remember these bikes all had a non faired counterparts and the only differences between the two versions are the parts needed to mount the fairings, bags and trunk.
I've ridden these bikes thousands of miles since modifying them and have had absolutely no handling issues whatsoever.

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Re: First time on Interstate

Postby thrasherg » Fri Oct 18, 2013 12:10 pm

Wow, what a pair of great looking bikes, that Yellow sure is loud, but I love them both!!

Gary

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Re: First time on Interstate

Postby silverado6x6 » Sat Oct 19, 2013 6:14 am

Check the fork air pressure again properly, I suspect the steering head bearings have play. There is a more detailed way to check air pressure and how to add it, on top of that is the fork oil. An oscillation like that at 70mph sounds to me like a swingarm problem as well, cupped tires will be what you would see. Old Wings do need wheel bearings, especially high mileage ones.


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