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Please talk sense into me, thinking about a Honda GL1000 project #5405492 04/16/20 09:14 PM
Joined: Mar 2020
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IMSA_Racing_Fan Offline OP
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I've built a couple of projects such as a worn out 1985 Yamaha FJ1100 into a 1300cc beast and owned several vintage SOHC and DOHC CB750s. It has been years since my last bike and I stumbled across a partially disassembled 1975 GL1000 for $500.

Should I go for it? Will the power be enough or should I skip it? Weisco doesn't sell oversized pistons.

Pic: What I aim to build, probably in red.

Dual-Weber.jpg
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405495 04/16/20 09:16 PM
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wwillson Offline
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Just do it and show us pictures when it's done. :-)

Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405519 04/16/20 09:56 PM
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Blkstanger Offline
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My late Uncle built more than a few of those. He was a fan. I think it would be a fun project.


99 Jeep WJ 4.7 200,000mi. Maxlife 10w30, Fram Ultra.
15 Ford Escape S 2.5, 75,000mi. Castrol Edge EP 5w30 Fram Ultra.
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405532 04/16/20 10:23 PM
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gman2304 Offline
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The first year Goldwing! Before Honda loaded them down with fairings, bags, trunks, fenders that covered the wheels, etc. I would love to have an early standard Goldwing! Having said that, I owned a 1978 GL1000 GW with all the after market Vetter offerings. It might be a challenge as far as finding aftermarket big bore kits etc for a 45 year old GW.
Keep us posted on what you decide to do.

Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405555 04/16/20 11:22 PM
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dwendt44 Offline
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Only rough spot might be the carberators. Most that re-do these switch the the

1100 CV carbs.

My 2¢


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: dwendt44] #5405592 04/17/20 02:25 AM
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IMSA_Racing_Fan Offline OP
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Thanks for the tip. No way am I going to throw down on Webers like in the pic.

Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405685 04/17/20 07:41 AM
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BigCahuna Offline
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It will be a labor of love. New parts are hard to impossible to find at this point in time, buy you can find other bikes like what your thinking of getting for around the same price. I had a brand new '76 many moons ago. It ran really good and was no slouch for 1,000 cc's at the time. What you'll probably need to address is the carb's, timing belts, water pump, they were notorious for fuel pump leaks, the gas tank on mine had rust issues and sprung a pin hole leak when it was over 25 years old. Which requires taking half the bike apart, due to it being under the seat. Any used one's you may find will probably be rusted and possibly leak. The stock exhaust mufflers will probably be rusted away, but some people use Harley Sportster mufflers to replace them. They're cheap and plentiful. I swapped out the dual point setup for an electronic ignition, easy to do and less to worry about. It ran on regular any octane it wasn't picky. And the owners manual say ant automotive grade oil that has a api approval, @ 8,000 OCI's again their not picky. I ran 15/40 in summer. 2 sites that have alot of info and you might be able to score parts from is, Saunder's Goldwing site, and a guy named Randakk site, who does performance builds with older wings. He has some interesting stuff. You might get some idea's and replacement parts. Good luck.,,

Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405720 04/17/20 08:33 AM
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Cujet Offline
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They are very cool looking bikes when customized well.

However, they are really lackluster performers in just about all ways. The chassis dynamics are not great, the brakes are weak with poor feel and cornering is at best, wonky. The engine is really pleasant, and makes acceptable power in the mid RPM range.

It will take cubic dollars and a good bit of DIY customization to make a good performer out of an old GL1000.

Although if this is the kind of custom you want, nothing else will do!

Last edited by Cujet; 04/17/20 08:45 AM.

People who count on their fingers should maintain a discreet silence.
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405738 04/17/20 08:54 AM
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Gebo Online Content
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Originally Posted by IMSA_Racing_Fan
... partially disassembled 1975 GL1000 for $500...



This is the only part that concerns me. I would have to see how "partially disassembled" it was.

Last edited by Gebo; 04/17/20 08:55 AM.

'98 LEX LS400 310K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 75K

Shell Gas and Truck 5w-30
Amsoil OE 10w-30
Toyota ATF's and Coolant
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Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: Gebo] #5405781 04/17/20 09:27 AM
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Inspecktor Offline
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www.Randakks.com Parts and customization for early Wings.


2004 Mini Cooper 43,000 mi
2006 Dakota 4.7 156,000 mi
1986 GL1200A 74,500 mi
2001 Buick LeSabre Limited 299,800 mi
2001 Subaru Outback 169,000 mi
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405783 04/17/20 09:28 AM
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CT8 Online Content
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Probably it would be cheaper to buy a new bike . But then you would miss the project and self hate from wasting the $$$$$.


2015 F150 2.7
2018 F350 6.2
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: Cujet] #5405794 04/17/20 09:42 AM
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Inspecktor Offline
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Originally Posted by Cujet
They are very cool looking bikes when customized well.

However, they are really lackluster performers in just about all ways. The chassis dynamics are not great, the brakes are weak with poor feel and cornering is at best, wonky. The engine is really pleasant, and makes acceptable power in the mid RPM range.

Mostly true, but in 1975 it was the second quickest bike in acceleration, behind the Kawasaki Z1.


2004 Mini Cooper 43,000 mi
2006 Dakota 4.7 156,000 mi
1986 GL1200A 74,500 mi
2001 Buick LeSabre Limited 299,800 mi
2001 Subaru Outback 169,000 mi
Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405864 04/17/20 10:43 AM
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IMSA_Racing_Fan Offline OP
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Think I'm going to pass. I could bring it back to life but after watching videos of other examples the engine character is just not "me". Revs too slow. Will keep my eyes open for a CB760/900F, KZ, etc. I love the air cooled inline 4

Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405889 04/17/20 10:56 AM
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JohnG Offline
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Are you kidding me! $500 for a true classic. I'd do it in a heartbeat. Here's your parts:

https://www.partzilla.com/catalog/honda/motorcycle/1975/qa50k3-a

Re: Please talk sense into me, thinking about a Honda GL1000 project [Re: IMSA_Racing_Fan] #5405901 04/17/20 11:07 AM
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JohnG Offline
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Sorry, that was the wrong model. I had to go to 1976 M/Y.

https://www.partzilla.com/catalog/honda/motorcycle/1976/gl1000-a-gold-wing

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