Going naked


Information and questions on GL1100 Goldwings (1980-1983)
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Johnny Boy
Posts: 17
Joined: Tue Mar 06, 2018 1:32 pm
Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Going naked

Post by Johnny Boy » Sat Apr 28, 2018 4:48 pm



Hi all. I have a 1980 Interstate. I am considering going front naked, keeping the bags. I think I need the fork tube mounting pieces (2) with the top and bottom sealing gasket things, the headlight shell and ring, turn signals and the "Honda" logo that goes on the front of the lower tree, correct?

If anybody has those pieces maybe we could work something out.

Thanks gang.
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DaveO430
Posts: 617
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: Going naked

Post by DaveO430 » Sat Apr 28, 2018 5:28 pm

Those headlight ears are almost impossible to find, I used to have some but don't remember if I used them or not. An original headlight is even more impossible and expensive if you do find one but you can find a reasonable substitute on ebay.

Good Hondog
Posts: 58
Joined: Sun May 14, 2017 6:56 pm
Location: Calgary, Alberta, Canada
Motorcycle: 1980 GL1100 Interstate

Re: Going naked

Post by Good Hondog » Sat Apr 28, 2018 6:37 pm

DON'T DO IT! That bike is in primo cherry condition! People would kill to have a bike that nice. You don't realize how good you've got it right now. You should see the piece of crap 1980 I'm trying to restore in my garage. Yours already has a killer look to it without the trunk mounted on, and you can still retain the utility and usefulness of the original Interstate touring version by simply reattaching the trunk for trips. Without touching a wrench or spending any money you already have the best of both worlds. Please let me know when you want to sell that bike!

DaveO430
Posts: 617
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: Going naked

Post by DaveO430 » Sat Apr 28, 2018 7:14 pm

Good Hondog wrote:
Sat Apr 28, 2018 6:37 pm
DON'T DO IT! That bike is in primo cherry condition! People would kill to have a bike that nice. You don't realize how good you've got it right now. You should see the piece of crap 1980 I'm trying to restore in my garage. Yours already has a killer look to it without the trunk mounted on, and you can still retain the utility and usefulness of the original Interstate touring version by simply reattaching the trunk for trips. Without touching a wrench or spending any money you already have the best of both worlds. Please let me know when you want to sell that bike!
I agree, I didn't even look at the picture at first, a nice one like that should be left as close to original as possible. Buy a beater to make a naked one out of.

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redbug
Posts: 408
Joined: Fri Sep 30, 2011 8:22 am
Location: Broken Arrow,Ok
Motorcycle: 1983 Gl1100I
1986 Harley FLHT

Re: Going naked

Post by redbug » Sat Apr 28, 2018 7:42 pm

Don't you dare.... Ditch the luggage rack and then stand back and look at her. Perfect. She is a lady you know.
" Ridin on Tulsa Time "

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Johnny Boy
Posts: 17
Joined: Tue Mar 06, 2018 1:32 pm
Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Sat Apr 28, 2018 8:15 pm

Hey guys thanks for the compliments on the bike! It is pretty primo. Got it a coupe of months ago. Starts, idles, shifts and runs really nice. Gets 39 mpg when I ride it like a grandmaw, gets 33 when I ride it like me. But lots of long steep hills around here. I have the trunk and the original seat, both in like new condition. The seat I'm running is an aftermarket 1000 seat. One member on this board told me a 1000 seat wouldn't fit. I just made a new tongue to fit under the rear of the false tank, fits fine. The stock seat looks like the most comfortable seat on Earth but not for me. I prefer a flat seat.

The Clarion Type 1 radio doesn't work. I read here that Sierra may be able to fix it.....for $150 + shipping, no thanks. I carefully removed everything. The whole rig-a-marole weighs almost 9 lbs!

I don't plan on hacking up anything. I just want to carefully remove the fairing.

Almost new tires, all maintenance up to date, needs nothing, not perfect but really nice, 26,000 miles. And you know everything's for sale. Make me an offer.

DaveO430
Posts: 617
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: Going naked

Post by DaveO430 » Sun Apr 29, 2018 5:59 am

Maybe with a little more work you can get that gas mileage up where it should be. I had 3 1100s I rode quite a bit, 2 naked ones got 44 consistently, a full dressed one got 47 all the time and another one with Vetter fairing and luggage I fixed up for a friend got as much as 49.

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Johnny Boy
Posts: 17
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Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Sun Apr 29, 2018 8:33 am

Can I pick your brain on this MPG thing?

When I bought the bike it carburetted beautifully. Starts easily, idles steady a hair under 1000, revs clean all the way up. Plugs are burning a nice tan. I checked the valve clearances and did a sync. I use the Twin Max sync tool. I did not have to adjust anything, it was all spot on.

I've been running ethanol-free 87 octane. There is no pinging. No exhaust smoke. The bike came with a Mac exhaust system. Although it does run very good and does easily make it to "interstate" speed (but with the silly 80mph speedo I don't really know how fast-keeping up with traffic), "seat-of-the-pants" feels down on power. I was very surprised and disappointed at the low MPG.

I'd sure appreciate your thoughts or tips on this.

DaveO430
Posts: 617
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: Going naked

Post by DaveO430 » Sun Apr 29, 2018 1:45 pm

With the Mac exhaust the main jets may have been changed or if someone used aftermarket kits that came with jets they are usually bigger than original, even if they have the same numbers. Also float levels in those carbs are critical. As always keeping the tires aired up, I always liked 36psi in 1100s, and making sure there is no brake drag helps. May be I've been lucky and I do ride them hard, though not at high speed for long interstate stretches, but I couldn't make any of mine get lower than 44.

Joneszy
Posts: 29
Joined: Sat Jun 24, 2017 10:27 pm
Location: Minnedosa Manitoba Canada
Motorcycle: 1983 GL1100A Aspencade

Re: Going naked

Post by Joneszy » Mon Apr 30, 2018 10:36 am

Just another WOW on your bike, What a beauty! So pristine looking she can move into my garage looking just like that anytime.

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Johnny Boy
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Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Tue May 01, 2018 7:31 am

Thanks Joneszy. She is a beauty...but a thirsty beauty. I figured it was carbs. Everything else is how it should be. So i guess I'll be getting sub-par MPG until I get around to pulling the carbs.

Pretty sure the PO was telling the truth when he said the carbs had been done. It runs great, doesn't leak and the sync was on the money when I checked. The plan is to pull the carbs, re-set the float height and air screws if necessary and check the main jet size. If the main jets are over sized I think I will go down a size or so in an effort to improve the MPG. And then confirm that she still runs good with the smaller jets.

Sound about right to you guys? Anything else I should watch for?

t2oldbikes
Posts: 40
Joined: Thu Mar 11, 2010 12:50 pm
Location: St. Clair Shores,Mi
Motorcycle: 1982 GL1100i

Re: Going naked

Post by t2oldbikes » Fri May 04, 2018 1:36 pm

Don't strip it, it is in too nice of condition to mess it up. There are always neglected crappers to strip down to roadster status and they are cheap. Yours' looks as good as mine and I would never strip mine. It will retain far more value as original with the factory installed equipment.
Old motorcycles are plagued by wannabe custom builders and their half you know what bobbers, cafe, bobfes and cabobs. They feature the typical wrapped pipes, upside down clubman bars, ape hangers with a road racing seat or 10 spray cans of flat black paint on the engine, tires, wheels, brake discs and the next door neighbors dog. Don't be that guy.
Glad to see someone who pulls off the trunk for one up casual riding like I do. Better mileage and stability at speed.

Sander van Bussel
Posts: 7
Joined: Thu Aug 31, 2017 4:07 am
Location: Tilburg
Motorcycle: 1976 GL1000 / 1982 GL1100 Interstate/ 1985 GL1200 Limited Edition

Re: Going naked

Post by Sander van Bussel » Mon May 07, 2018 3:10 pm


Alway loved the naked look on a GL1100
Alway loved the naked look on a GL1100



I always loved the look of a naked GL1100. After having it naked I found this windshield, cut it in shape a bit and made it fit with a custom made bracket. But yes, if your bike is completely original, keep it like that.

t2oldbikes
Posts: 40
Joined: Thu Mar 11, 2010 12:50 pm
Location: St. Clair Shores,Mi
Motorcycle: 1982 GL1100i

Re: Going naked

Post by t2oldbikes » Mon May 07, 2018 4:32 pm

That does look good, especially with the flatter bars. Mine is 100% original with a fair amount of accessories.
What's that blue bike in the window? Looks like a Puch motor and the leading link forks look good. Reminds me of a small Ducati air-cooled two stroke but don't think that's it.

Sander van Bussel
Posts: 7
Joined: Thu Aug 31, 2017 4:07 am
Location: Tilburg
Motorcycle: 1976 GL1000 / 1982 GL1100 Interstate/ 1985 GL1200 Limited Edition

Re: Going naked

Post by Sander van Bussel » Tue May 08, 2018 2:16 am

Thanks t2oldbikes. If your bike is original, keep ik like that I suggest. Mine was original when I bought it quite some years ago. Changed the seat, bars, and removed front to my taste then.

The blue bike is a '64 DKW Violetta. The owner of the shop left a note on my bike asking if I'd rather park my bike somewhere else since it was blocking the view to the store :lol:
Maybe I should ask him if i can park my bike in the shop ;)

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Johnny Boy
Posts: 17
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Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Thu May 17, 2018 9:44 pm

I thought I'd update. Took the misses to the drags last Friday night. A ride of about 20 miles west on I-40. She loved it. Said it was very comfortable and gave the lack of wind blast a big thumbs up. I'v decided to keep the fairing.

I later mentioned in a post about poor MPG. I pulled the carbs and found stock size 145 main jets. I didn't mess with the pressed in pilots, no need to anyway. Starting, idling, low and mid-range are fine. Float height was right on 15.5mm. But the mixture screws were out 3.5 turns, too much I think. I re-set them to 2.25 turns out.

I put it back together and she runs fine....except the slight miss right close to the redline. Well I'm convinced the carbs and fuel delivery are good and from many years of riding old motorcycles it felt electrical. I ohm tested the coils and the 3-4 coil tested bad. I then ohm tested the wires and caps separately. Wires were good (4 ohms) but cyl #3 cap showed massive resistance, way more than the other 3 with the small resister in the cap.

I have a set of coils on the way. But I also need spark plug caps now.

I have a question. Can I use standard copper plug wires and spark plug caps (no resister) in place of the stock caps with the resister? I don't have a radio or intercom on my bike. The resister caps are just for radio noise suppression, right?

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redbug
Posts: 408
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Location: Broken Arrow,Ok
Motorcycle: 1983 Gl1100I
1986 Harley FLHT

Re: Going naked

Post by redbug » Thu May 17, 2018 11:29 pm

7mm wire and unscrew the caps take out the resistor and cut a piece of solid copper or brass the same length of the resistor and screw it back together.3/16 or 1/4 round brass . Or you can go to Honda and get the four wires the ones with the extra insulation and original and each come with set of numbers you put on like the original and fit perfect in the holders and look nice. By the way the 7mm wires look really cheesee
" Ridin on Tulsa Time "

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Johnny Boy
Posts: 17
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Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Fri May 18, 2018 8:31 am

Thanks redbug, that's exactly what I tried. Removed the small resister and replaced it with a same sized piece of thick solid copper wire. That's when I found that #3 cap had an internal break--even with the solid copper wire installed the ohm test showed a zillion ohms.

So I'm getting from your answer good copper plug wires and standard plug caps without a resister will work fine, right?

The first pic shows the copper piece that replaced the resister.
The next pic shows over 100k ohms with the copper piece installed on #3 cap.
The last pic shows the meter displaying 33 ohms on cap #1 with the copper piece installed.
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redbug
Posts: 408
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Motorcycle: 1983 Gl1100I
1986 Harley FLHT

Re: Going naked

Post by redbug » Fri May 18, 2018 12:58 pm

This is frequently done and if you are not worried about a little static in you radios you should be good to go. Just realized that you didn't go the dodge neon route on the coils from the salvage,that's a alternate for next time.
" Ridin on Tulsa Time "

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Johnny Boy
Posts: 17
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Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Fri May 18, 2018 1:44 pm

With new coils there shouldn't be a next time. In 30 years I'll be in my 90s.....well, maybe. I'll make a mental note about the Neon coil and see if I can bring it to the surface in the year 2048 or so. Fat chance of that happening!!!

As I mentioned in an earlier post-no radio or intercom.

Thanks for the confirmation redbug. I'll report back when the new stuff is on with a "Wide open throttle" report.

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jeffcosmo
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Location: Burlington, WI (Honey Lake)
Motorcycle: 1983 GL1100 Aspencade
1983 GL1100 Aspencade
1983 GL1100 Aspencade (parts bike)

Re: Going naked

Post by jeffcosmo » Fri May 18, 2018 1:57 pm

Johnny Boy wrote:
Fri May 18, 2018 8:31 am
So I'm getting from your answer good copper plug wires and standard plug caps without a resister will work fine, right?
The way ignition works is either resistor plugs OR resistor caps will reduce static. When the 1100 was new, non-resistor plugs were more common than they are now.
So absolutely no worries.

Cosmo

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Johnny Boy
Posts: 17
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Location: Crossville, Tennessee
Motorcycle: 1980 Goldwing 1100i, 1998 Triumph Sprint 900, 2002 Kawasaki Ninja 250

Re: Going naked

Post by Johnny Boy » Sat May 19, 2018 8:29 am

Thank you Mr. Cosmo. Nice machine you got there.



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