GS1000G Rebuild

[Goesman]

This thread is fun to watch. The pics look like they could be from my bike as I have an 1100 and going through similar work with similar timing. Except, my airplanes are in a different room

(Is that a Twisted Hobbys plane I see? I never knew a foamie could be so much fun until I got my TH plane.)

Yep that's a twisted hobbies plane. Its crazy how a peice of foam can be so much fun.


I managed to get the signal lights working today on the bike. All i have to do is finish up a few minor things and the wire harness will be back and working in proper order.

[Goesman]

Went and looked at a good parts bike today, its a 82 GS1000g. It was all there minus the side covers. I hope the guy has them stashed some where. He is letting me pick it up for a 100$. It doesn't have a title and it kind of rough looking like its been out in the weather for a while. I wouldn't be to surprised how little it would take to get it to run. Hoping to go pick it up Friday.

[Steve]

Went and looked at a good parts bike today, its a 82 GS1000g.

If it really is an '82 1000G, it's worth a fortune.

The 1000G was only produced in '80 and '81.

The '82s were 1100cc, making them a GS1100.

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[Goesman]

If it really is an '82 1000G, it's worth a fortune.

The 1000G was only produced in '80 and '81.

The '82s were 1100cc, making them a GS1100.

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Thanks for setting me straight on that. If the 1000 were to kick the bucket would that 1100 bolt up it in?

[GSX1000E]

Thanks for setting me straight on that. If the 1000 were to kick the bucket would that 1100 bolt up it in?

Yes. But I believe that may need some other drive-line parts from the 1100G which would not be a problem as you would have the entire bike.
Contact me via PM if/when you decide to sell off any of the 1100G parts that you don't need please including the front end.

[Steve]

If the 1000 were to kick the bucket would that 1100 bolt up it in?

I believe it will be a straight swap. Might need the engine mount pieces from the 1100, but everything else should go straight across.

.

[Pete's GS]

Oh, get ready to replace everything. Don't bother with that petcock; just replace it. I would powder coat those brake calipers after you rebuild them completely. You'll probably need new pistons.

[Goesman]

The old girl runs. i did a total tear down of the carbs and cleaned them. Had to do a lot of fiddling to get it to start up. Finally got it idling and adjusted the idle screws and its pretty good but not great. When i would hit the throttle it would rev up real nice then the next twist of the throttle it would bog down. My guess that's because i don't have the air box on it.

Also when it was running it seemed to have a fair bit of blow by out the vent hose.

I wasn't able to go get the parts bike this week, i am hoping for next week.

[JTGS850GL]

No airbox = no rev. Normal for a CV carbed engine. Get a good sealed airbox on there and you'll have a better idea on what's needed. Make sure you do all the REQUIRED maintenance before you get too far ahead of yourself. Valves adjusted, carbs cleaned PROPERLY, carbs synced, fluids changed are not optional on a bike that's sat for a long time. Get everything sealed up from air cleaner to exhaust with new O-rings and seals. As others have said, the petcock on these bikes is notorious for going bad and leaking after 30 years of use. Don't rebuild it... it wont work... just pick up a new one and forget it for another 30 years.

Good luck on the new project. The bike in my sig looked pretty bad when I first picked it up. Now people ask me about it when I ride it around. Feels good to bring an old girl back to life. The next step for me is to replace the 1000G engine with a 1983 GS1100G engine I already have on hand. I've done some of the research and found that it should be a direct bolt in but, in my case, the 83 "signal generator" had to be replaced with one from an earlier year in order to use the 80 to 81 igniter.

Keep us updated on your progress. The more pictures the better!!!!

Looks to me like the instruments, front fender, handlebars and headlight bucket are from an L. The fuel tank and petcock are original for an 80-81 1000G. Same as on mine. Exhaust is an original 1000G exhaust.

[Goesman]

the old bike has brakes now. Pulled the calipers all apart and cleaned them up. Pistons looked good and the seals were in great shape. Cant help but think that some one rebuilt them at one time. Got them all together and all the air out of the lines. One step closer to going down the road.

I fought with the airbox for a hour or two before finally giving up on the stupid thing. Whats the cheapest place to get new boots for the airbox?

I will get some pictures up of my progress tomorrow.

[Goesman]

Carbs all cleaned up, she idles good just need to get the airbox on the thing.


I need to get this rats nest lined out.

[Big T]

Take the carbs off

Install air box

Reinstall carbs

[ShadowFocus603]

Take the carbs off

Install air box

Reinstall carbs

The 850 and 1000G's are easy to do airbox install with carbs in place. Now if this were a 750 or 1100 I'd absolutely agree.

[Flyboy]

Good work, nice to see you getting on with it, that petcock is standard G, as has been said, but it looks like it is missing the stand pipe/strainer that goes into the tank. No big deal but it will allow crud through, as the stand pipe has a very fine mesh fo keep bits going through the system.
You also will not have an ON - RES function, as that is in the standpipe, so when you run out of gas, that is it, start pushing, no reserve, again, no biggie, just be aware of it.
Once again, nice going.

if the rubbers are good, the airbox o the 1000G is easy enough to install, it slips in behind the carbs pretty easily, no need to remove the carbs.

[Goesman]

Picked up the parts bike today. A 82 GS1100G, its not in that bad of shape. I pulled the carbs and airbox and the air box fell right in place on the 1000 making me very happy. Not a bad old bike for parts for a hundred dollar bill. Its got quite a piece of scrap iron on the back of it for a rack. I also have the seat for it.