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GS1100 winter project

  • Thread starter Thread starter Jrgunn5150
  • Start date Start date
J

Jrgunn5150

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Hi everyone. This is going to be the build document on my 1982 GS1100G. I'm not really a bike guy, I've had a few when I was a teenager, but I was just a rider of them then, so it's unfamiliar territory for me.

What really got my wheels turning on this was Daryl's CB750 on The Walking Dead lol. It just kind of struck me that a bike made perfect sense, since it could get around traffic snarls, etc. Then, my wife reads cheesy zombie books pretty voraciously, and a common theme in them is that an EMP is used, either to stop people from being mobile, or as an attack. So I though, well, points would solve that.

So anyway, the idea rattled around in my head for awhile, I have lots of imaginary builds in my head lol. Then I was perusing the Facebook Marketplace and came across a GS1100G that had seen better days for sure, only 250 bucks though.

My comfort level with these wasn't really high enough to dive in, for all I knew it was a parts bike, (it may be still lol), so I saved it and moved on.

I was into a shaft drive though, and after a few CB's fell through, I contacted the kid, asked what he could tell me about the bike. He told me he had been riding it, some stuff was broken, some stuff was missing, his dad basically wanted it gone lol.

So I headed over there with the dog and sure enough, it fired right up on the charger. It started and ran, and moved, and for me, that was good enough for 250 bucks. So money and titles changed hands.

https://www.youtube.com/watch?v=FhtK5Fcv8EY

I've since gotten it home and gone over it, it has a busted shock mount, the front forks are smoked, I believe the regulator is bad, it's charging a little higher than seems normal, at 15.2v at idle, rear brakes are non-functional, front brakes are marginal, dash is smashed, and rear swingarm doesn't move at all.

This weekend I plan to strip the tank, dash, wiring and start on cleaning up the frame, it's got a lot of surface rust and poop.

The goal is a minimalist build, I don't know that I would call it a Cafe Racer or Bobber or whatever, but I'm not intending to put anything on it it doesn't need, so I'll probably re-wire it to be simpler, headlight and tailight only. I intend to do the regulator upgrade, rebuild the front forks, possibly replace the rears, or rebuild them.

My goal is to have this done for 1,000 total, so I can then turn my attention to a bike for my wife so we can ride together.

Anyway, thansk for reading my little book, and I'll see you guy's around.
 

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Looking forward to your updates. Somewhat of a similar story for me...rode a lot in my teenage years, then life got in the way. Now that I’m an empty nester (and have always been a motorhead), decided I needed something to wrench on. Long story, but pulled the trigger on an ‘’80 GS1100L(T) (didn’t know that was the only year they made that model). I am just nursing it back to near perfect running condition. Won’t be modifying anything. Just wanted something to tinker on (and I got my money’s worth with that, having a starter clutch/crank nut issue from day 2 onward, and a crappy charging system...eventually remedied with a great Compufire R/R. Learning a lot...e.g. had never crimped a wire connection in my life until now LOL!
Again...looking forward to seeing how she turns out.
 
Looking forward to your updates. Somewhat of a similar story for me...rode a lot in my teenage years, then life got in the way. Now that I’m an empty nester (and have always been a motorhead), decided I needed something to wrench on. Long story, but pulled the trigger on an ‘’80 GS1100L(T) (didn’t know that was the only year they made that model). I am just nursing it back to near perfect running condition. Won’t be modifying anything. Just wanted something to tinker on (and I got my money’s worth with that, having a starter clutch/crank nut issue from day 2 onward, and a crappy charging system...eventually remedied with a great Compufire R/R. Learning a lot...e.g. had never crimped a wire connection in my life until now LOL!
Again...looking forward to seeing how she turns out.

Building is fun! And bikes seem alot cheaper than turbo charged trucks lol.

I started today on building a stand for it, bought the wrong screws couldn't build it, got depressed, gave up for the day and left it on sketchy jackstands lol.

1 by Marvin Gunn, on Flickr

2 by Marvin Gunn, on Flickr
 
Interesting that you're the second one here in the last year to do a Walking Dead inspired build...
Good luck and enjoy.
 
Wow! Good luck...not to be discouraging but that's a "Whole Lotta Love" your bike needs.


Ed
 
Wow! Good luck...not to be discouraging but that's a "Whole Lotta Love" your bike needs.


Ed

True, but I don't feel even a little bit bad about chopping it up or gutting it lol. If it were complete, I probably wouldn't want it.
 
Seat, shocks, shock mounts, frame hoop, and fork seals ordered and inbound. Probably hold off on the fork rebuild until I have my frame mods done.
 
Trimmed some more brackets off, ground some more frame, seat came in today, got that mocked up for now at least. Going to need a new tank, so I'm holding off on anything permanent until I get a new one.

20181114_202714 by Marvin Gunn, on Flickr
 
This EMP problem wont be solved with this bike nor would the 750 Nighthawk like the Walking Dead bike, since neither come stock with a point system. You will need to get a pre 80s point plate, points, rotor and coil system. I think they will bolt up, but don't hold me to that as I don't think I've seen anyone here go that route. It's usually someone that is converting the pre 80s bikes to an electronic ignition. Seach threads where that is happening and see if they will part with there old system, most get thrown away.
 
This EMP problem wont be solved with this bike nor would the 750 Nighthawk like the Walking Dead bike, since neither come stock with a point system. You will need to get a pre 80s point plate, points, rotor and coil system. I think they will bolt up, but don't hold me to that as I don't think I've seen anyone here go that route. It's usually someone that is converting the pre 80s bikes to an electronic ignition. Seach threads where that is happening and see if they will part with there old system, most get thrown away.

Yeah, i figured that out when looking at it. According to Dynatek, the GS750 setup will fit it, since it has no mechanical advancer or anything in it mechanical at all. Kind of dissappointing, but live and learn. There's quite a bit of debate over whether ignition systems would be susceptible to EMP or not anyway, all the studies are sketchy.

At any rate, I'm not in any serious way attempting to prepare for a zombie apocalypse anyway, just having fun building my first motorcycle.

Parts are starting to come in, got my shocks today, so I can make some progress fitting things up and getting all the brackets where I need them before pulling the engine.

I also got my stand video completed, it's not pretty, but it was cheap,

https://www.youtube.com/watch?v=3lACGFdSMBo
 
They will bolt up, i put the electric pickup from an 81? 1000g on a 79 850 to get it to start once

I might grab a whole setup on EBay just to see, they are way cheap.

Last night I messed around with the petcock, cut the head off the stuck bolt standing in the snowstorm in my driveway just in case of disaster lol. Then the nub was just spinning, it was an odd thing, the threads were peeled off the middle of the bolt, and it had a little turd on the very bottom preventing it from pulling through. It was weird, but now I have two tanks, or I will, whenever my new tank shows up from Guandong (real place lol).

I'm going to go out tonight and tear it down to the frame and motor. Decide what I'm going to do with the forks, trees, and frame.
 
And we're down to a engine/frame. Ever bearing surface looked like it had been lubed with salt and dirt, then left in a ditch lol. Going to run a compression test sometime this week and see what I come up with there.

Stripped to engine by Marvin Gunn, on Flickr
 
Found a little surprise while getting ready to run a compression test tomorrow lol. It was under the starter, like the starter had been installed on top of it, and was plugging the gearbox vent lol.

Starter Surprise by Marvin Gunn, on Flickr
 
Hey man, just out of curiosity, what are you going to do about forks? Rebuild yours, or try to buy some take offs in better shape?
 
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