Major custom in the works - What excess can I eliminate?


Information and questions on GL1000 Goldwings (1975-1979)
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CAMillion
Posts: 12
Joined: Mon Apr 24, 2017 10:58 am
Location: Wood River, NE, USA
Motorcycle: 1979 GL1000
1984 GL1200
1984 GL1200 Interstate
1985 Big Red ATC (250ES)
1985 125M ATC
1985 200X ATC
1985 250SX ATC
2001 Rancher
1972 HD 125SL Street/Trail
(Aermacchi -AMF era)

Major custom in the works - What excess can I eliminate?

Post by CAMillion » Tue Dec 31, 2019 3:00 pm



I picked this 79 GL1000 up for next to nothing and intend to create a 'radical' custom.
Have never messed with a Goldwing and know nothing about them.
I have built several frames and transplanted various engines (300-500 cc) for track bikes.
My intention is to create a quasi cafe bike with the bare minimum.
QUESTIONS:
1) How much of the electrical can be eliminated?
2) Do I need to retain the push-pull throttle set up?
3) Considering keeping the faux tank & converting the gauges on the tank to RPM, Speedo & Fuel - Is this doable? (Eliminating the big gauges on the triple tree)
4) Engine requires complete overhaul - Anything that I need to be aware of that isn't in any manual?
5) Any issues with converting the intake to a single plenum each side and using Webber, Skinner Union or Solex carburetors?
6) Is it possible to adapt a Hilborn Injector in place of the carbs?

Okay, I'll stop now - just trying to get an overall feel for what I'm getting into.
As for what you see in the picture - I need to modify the seat pan (from a 1985 Honda 185 ATC) and changed the handle bars (from a 1984 Honda 125 ATC), shortened each end 3".
BTW - For the last 20 years or so I was extremely addicted to the mid 80's Honda ATC's (3 wheelers) - Had as many as 16 at one time (125's through 350's, 2 & 4 stroke.
Still have a 125G & 250 Big Red.
Thanks for any and all comments!

EDIT - I looked through several posts and discovered that the 'carburetion' question has been addressed several times - my bad.
Appears to be a frequent modification and appears that various carbs will work (if set up correctly).
But, is it possible to use a Hilborn injector?
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AZgl1800
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Re: Major custom in the works - What excess can I eliminate?

Post by AZgl1800 » Tue Dec 31, 2019 6:24 pm

1st thing, just find another engine that is guaranteed running.

far cheaper than trying to buy unobtainium parts for the one you have.
~John
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Rambozo
Posts: 432
Joined: Sun Apr 01, 2018 8:36 pm
Location: Disneyland
Motorcycle: 1992 GL1500 Aspencade

Re: Major custom in the works - What excess can I eliminate?

Post by Rambozo » Tue Dec 31, 2019 11:29 pm

1 You can remove whatever electrical you don't want. Do you need a charging system? How about electric start? Show bike, track bike or a real rider?
2 They are a lot safer on the street, and not much weight savings. Again or is it all about the look for show? Or not needed at all if you go drive by wire.
3 Almost anything is doable with enough time, money or both.
4 As John said, parts are very hard to come by. What does it really need?
5 That much work just for different carbs? I wouldn't waste the time.
6 Sure, but again unless it's for show, why mess with mechanical injection. So much easier, lighter, etc. to use modern electronic injection. Megasquirt FTW.

The big questions are what finished product are you trying to get out of this bike, and how much time, money are you willing to spend to get there.

User avatar
CAMillion
Posts: 12
Joined: Mon Apr 24, 2017 10:58 am
Location: Wood River, NE, USA
Motorcycle: 1979 GL1000
1984 GL1200
1984 GL1200 Interstate
1985 Big Red ATC (250ES)
1985 125M ATC
1985 200X ATC
1985 250SX ATC
2001 Rancher
1972 HD 125SL Street/Trail
(Aermacchi -AMF era)

Re: Major custom in the works - What excess can I eliminate?

Post by CAMillion » Fri Jan 03, 2020 8:26 am

Guess I didn't realize that parts were that hard to come by -
I spose I'll just have to start looking for both, 1000 & 1200 running and keep what I got for parts.
The 1000 will be a cafe and the 1200 a bobber.
Neither for show and both to ride!
As to the carbs, just wanted something a bit unique. BUT, would rather ride than mess around with fuel issues.
As to the electrical, keep the charging system and electric start but that's it.
Thanks guys!

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pidjones
Posts: 76
Joined: Sun Jun 03, 2012 2:14 pm
Location: Clinton, Tennessee
Motorcycle: 2006 GL1800A
1978 GL1000 w/'75 engine (project)

Re: Major custom in the works - What excess can I eliminate?

Post by pidjones » Mon Feb 03, 2020 7:53 pm

'79 had already removed the emergency lighting system. Not really a lot left to remove except the gauge wiring. Really good to keep the temperature. No conversion of the gauges, but you might be able to replace them.



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