Second time around: '75 GL1000 Project

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datsunfreak
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Re: Second time around: '75 GL1000 Project

#16

Post by datsunfreak »

pidjones wrote: Fri Apr 28, 2023 10:57 am Yes, fusible link - replace with an inline 30 amp receiver and fuse from the parts store. Yes, solenoid. Might work, might not.
I'll try that and see if it at least makes the electrons flow more consistently.
pidjones wrote: Fri Apr 28, 2023 10:57 am On my projects, I just bite the bullet, disassemble the entire bike, strip off the harness, and go over it one connector at a time cleaning and replacing Budget a couple weeks of couple hours a day - clean everything well first so you can see wire true colors). Vintage Connections carries all of the connectors, crimper, etc. There is no quick, easy on them.
In my heart, I know this is what needs to be done, just don't really know if I am the fella to do it... :oops:

I am not scared of rewiring a car from scratch, but wiring on bikes is just something I have never tackled. And a lot of this shit makes no sense if you come from car world...
pidjones wrote: Fri Apr 28, 2023 10:57 am And, it is a MINIMUM of a $500 project (brake parts, carb kits, tires and tubes, etc.) But! A little done each day (say, 15 minutes or so) can surprise you with a safe, reliable, nun-to-ride bike is a year or so.
Sound advice. Thanks. anim-cheers1
pidjones wrote: Fri Apr 28, 2023 10:57 am The tank really needs the rear drive, rear master, shelter, and rear shocks pulled to ease removal.
Yeah, that's the one I am dreading. :mrgreen:
pidjones wrote: Fri Apr 28, 2023 10:57 am Get a sealed battery for it. I use just AGM, but others use gel. Avoid plain vented lead acid as the acid fumes eat things in that area (like the 3 yellow wire connector). NO NEED (nor advised) to go Lithium.
Sage advice (that I will heed), but I feel like I am years away from needing a battery for it.


I am not a quitter, and don't want to give up on it, but yesterday just really took the air out of my balloon on this project. My last GL1000 needed the entire fuel system done and brakes gone through, but the electrics were always just fine. Of course it only spent 3 years in storage, not 24. I am really feeling like I bit off more than I can chew on this one...

I'll stew on it for a few days and see where my head is at next week. I do really love these bikes, and have wanted another one for a long time. But it's extremely daunting when viewed from this end of the timeline.

At this moment, I am mulling over two options. Buy a better one and save this for spares/parts, or buy something wholly different (read: newer and more reliable) that I can ride in the meantime while I wrench on this one.

Option two would be a lot more sensible, methinks. I know with old cars, it is damn helpful to have one you can drive and enjoy while working on your project car. If not, usually part way through you forget why you wanted to do this in the first place.
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Fred Camper
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Re: Second time around: '75 GL1000 Project

#17

Post by Fred Camper »

Just work a circuit at a time and you will be done in no time. My bet is the wiring will not be hard to fix for you. The ignition switch is a pita on these and is often the cause of wiring issues. There is an EMCO ignition switch replacement and if you want to keep your Honda key, the EMCO contact unit can be removed from the EMCO switch and installed onto the Honda ignition once the contact unit on that is removed. Works well that way.
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1977 GL1000 BADDOG (April 2012 BOTM)
1976 LTD - '993 LTD...and so it begins'

You should remember that it's peace of mind you're after and not just fixing the machine. R.Pirsig
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pidjones
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Re: Second time around: '75 GL1000 Project

#18

Post by pidjones »

Be sure to make photos and drawings of each connector with the color code to each pin. That will serve you well.
"Love 'em all.... let God sort 'em out!"
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
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datsunfreak
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Re: Second time around: '75 GL1000 Project

#19

Post by datsunfreak »

Fred Camper wrote: Fri Apr 28, 2023 5:01 pm The ignition switch is a pita on these and is often the cause of wiring issues.
Yeah, I was going to try and remove/clean that one first and see if it helps. After cleaning the fuse box and installing new fuses of course.

I know on old Datsuns, a lot of gremlins are located in the fuse box. Usually a thorough clean of it (and new fuses) does wonders.
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Re: Second time around: '75 GL1000 Project

#20

Post by datsunfreak »

pidjones wrote: Fri Apr 28, 2023 9:59 pm Be sure to make photos and drawings of each connector with the color code to each pin. That will serve you well.
That is the plan. anim-cheers1

I also printed the wiring diagram out HUGE and laminated it. :mrgreen:
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Re: Second time around: '75 GL1000 Project

#21

Post by pidjones »

Too bad they don't make a gun brush small enough to fit the female bullet connectors. That would be gold! A small round diamond file helps, though.
"Love 'em all.... let God sort 'em out!"
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
datsunfreak
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Re: Second time around: '75 GL1000 Project

#22

Post by datsunfreak »

pidjones wrote: Mon May 01, 2023 3:30 pm Too bad they don't make a gun brush small enough to fit the female bullet connectors. That would be gold! A small round diamond file helps, though.
On Datsuns, I have had great success with a soak in vinegar. It's the best way I've found to clean the corrosion out of a fusebox too.
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datsunfreak
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Re: Second time around: '75 GL1000 Project

#23

Post by datsunfreak »

Any recommendations on the best way to clean electrical contacts, like generic contact cleaner, or? Beside the obvious vinegar soak. :mrgreen:
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Re: Second time around: '75 GL1000 Project

#24

Post by Fred Camper »

Not bad to use steel wool, just do not leave steel behind and coat them with ox-guard or dielectric grease.
Proud member of the NGW Cartel (Rochester MI)
1977 GL1000 BADDOG (April 2012 BOTM)
1976 LTD - '993 LTD...and so it begins'

You should remember that it's peace of mind you're after and not just fixing the machine. R.Pirsig
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Re: Second time around: '75 GL1000 Project

#25

Post by datsunfreak »

Fred Camper wrote: Wed May 03, 2023 10:51 am Not bad to use steel wool, just do not leave steel behind and coat them with ox-guard or dielectric grease.
Ox-guard makes me a little nervous since it's electrically conductive (unlike dialectric grease). Have you used it with good results?

I see good online reviews for using Deoxit, so I may give that a shot.
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Re: Second time around: '75 GL1000 Project

#26

Post by Fred Camper »

Not tried Ox-Gard on the bike but it is a must to stop aluminum copper corrosion issues. Dielectic grease is a safer bet.
Proud member of the NGW Cartel (Rochester MI)
1977 GL1000 BADDOG (April 2012 BOTM)
1976 LTD - '993 LTD...and so it begins'

You should remember that it's peace of mind you're after and not just fixing the machine. R.Pirsig
datsunfreak
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Re: Second time around: '75 GL1000 Project

#27

Post by datsunfreak »

Fred Camper wrote: Wed May 03, 2023 4:11 pm Not tried Ox-Gard on the bike but it is a must to stop aluminum copper corrosion issues. Dielectic grease is a safer bet.
Thanks anim-cheers1
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Re: Second time around: '75 GL1000 Project

#28

Post by DET17 »

Nice to see another low mile GL1 come out of the grave. I agree with other's sentiment, a one owner bike of this age is rather amazing.

I sure wouldn't attempt to turn that engine with a starter until the belts are replaced. If you check my thread, you can see the condition of the cylinder bores (my bike was stored with carbs OFF, not good). I've already been through those and have them remedied.

Any motorized machine which has sat as long as ours have, is going to take some careful analysis and "due dilligence" before it will perform reliably. It won't be a "flush the fuel tank and install new tires" affair.

Good luck! Your machine is more together than my 76 LTD was when I rescued it.
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Re: Second time around: '75 GL1000 Project

#29

Post by datsunfreak »

DET17 wrote: Fri May 05, 2023 8:03 am Your machine is more together than my 76 LTD was when I rescued it.
Yeah, I'm lucky the only things missing are the emblems and front turn signals.

Got the badges, but need to start hunting for the signals soon...
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