Author Topic: 1978 GS1000EC  (Read 21293 times)

Offline IanC

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1978 GS1000EC
« on: January 02, 2011, 07:32:26 pm »
I'll be posting progress pics of my GS thou build here. She's been through a lot of changes in the year and a half I've had her. She's actually older than I am, I rode modern bikes but was without a bike for a few days while my Ninja was getting new tires mounted so my dad tossed me the keys to his 1979 GS1000S and I was in love. I wanted one for years and when money was available my dad found this one in upstate New York. We drove up, paid a grand for it and started the clean up as soon as we got it home. She had been 'painted' (a term I use loosely) a light blue, had rusted hardware and some rust on the frame, the engine was filthy and the engine covers were tarnished but she ran. Didn't run great though.

First order of business was replacing all the nasty stock potmetal bolts with stainless steel bits, stripped the body parts down and painted everything a semi stock black with white stripe (again not a great paintjob as I did it myself in the garage), tuned her up and she was ready to go. For months the bike was still plagued with an intermittent miss that was eventually tracked down to a pinched coil wire inside the wire sheath. Here's a few pics of her after the initial clean up.



My brothers 1993 GS500, my 1978 GS1000EC and dad's 1979 GS1000S.




I had the project on track to be an ok ride when I had to leave town for a funeral. My brothers GS500 was down with mechanical problems so I let him use mine while I was gone. An old woman pulled out in front of him and he slid the GS into a curb. Luckily he was ok but the bike was trashed. The worst of the damage was the tank that was only made with the indent on the sides for one year in 1978 had a HUGE crease in the side of it. Here's a few pics of the bike after the wreck.











Sooo...I went back to the drawing board. She got stripped to the frame, bad parts in one pile (sadly the larger pile), good in another. Sanded, primed and repainted the frame. Anything getting reused was either painted or polished. New parts came from all over the world. The list includes: GS1100 swingarm as it is aluminum vs. steel, wire wheels off an early 1978 GS1000 (tapped to accept rotors on both sides as the wire wheeled GS thou's were single disc), forks to replace my bent one, Progressive fork springs and thicker fork oil, brake adapter kit from Saltymonk on a GS forum to mount the 1995 Honda CBR rotors and 1990 Kawi Ninja twin piston calipers (stock was just pie plate discs and single piston calipers), braided SS brake lines all around, new bearings all around, Superbike handle bar, cut down seat that my dad happened to have laying around, Ohlin's style piggy back shocks, Dyna S electronic ignition to replace the points, relay installed to ensure a full 12v constantly to the coils, new fender, tank repaired by a magician, new paint job, new headlight and housing, other odds and ends and lots more stainless hardware.

I'll post pics of the rebuild in the next couple days. For now here's a shot of her in motion on the Gap with the fiance pylon.


1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline joe

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Re: 1978 GS1000EC
« Reply #1 on: January 02, 2011, 08:08:57 pm »
Great post!  Thanks.

Offline Curtie223

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Re: 1978 GS1000EC
« Reply #2 on: January 03, 2011, 02:53:19 pm »
 :21 Nice thread

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Offline jeff5150

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Re: 1978 GS1000EC
« Reply #3 on: January 03, 2011, 07:00:15 pm »
hey curt, does his dads 79 gs1000 look familiar? there was one identical to it at the autozone show last summer. not saying it was his, but identical to it.
81 gl1100....

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #4 on: January 07, 2011, 12:32:04 am »
NICE GS.. i just sold my '78 last year before I moved down here. Mine was kinda a cross between a Cafe and a Drag bike... I really like the old Suzuki's...
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline IanC

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Re: 1978 GS1000EC
« Reply #5 on: January 09, 2011, 01:35:32 am »
NICE GS.. i just sold my '78 last year before I moved down here. Mine was kinda a cross between a Cafe and a Drag bike... I really like the old Suzuki's...

Thanks and gorgeous slabby in your avatar.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #6 on: January 12, 2011, 11:17:02 pm »
And, thank you.. I started a build thread on it....
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline Curtie223

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Re: 1978 GS1000EC
« Reply #7 on: January 13, 2011, 05:19:23 pm »
hey curt, does his dads 79 gs1000 look familiar? there was one identical to it at the autozone show last summer. not saying it was his, but identical to it.
It does look alot like the one that was there. Where does your dad live IanC?

 2001 KTM 300exc 
 2004 LTZ400



-When you see another rider keep in mind that is another friend you haven't had the chance to meet yet!!
-Riding is about doing what you love! No matter what you ride or how you ride. Just as long as you

Offline IanC

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Re: 1978 GS1000EC
« Reply #8 on: January 13, 2011, 11:20:25 pm »
Japan for 9 months of the year. He's here in TN for the summer. Teacher and all. Don't think we were there though.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #9 on: June 14, 2012, 01:15:53 pm »
The thou got some recent love. Barnett clutch plates, discs and springs. Was starting to slip at high RPM's in 3rd so my beautiful wife bought me this kit. Love that woman.

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1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #10 on: June 14, 2012, 02:38:53 pm »
  :21  :wahoo  :21

You better hold onto that one.....the woman that is.... ;D
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #11 on: January 14, 2013, 03:53:56 pm »
Finally got around to getting the GS into the garage for my winter tear down. First step was a compression test and that was slightly disappointing. Granted I did a cold test but #1 and #4 were near minimum spec while the two center cylinders were way below. That may be in part due to the valve stem seals that I know are shot but for peace of mind it looks like I'll be putting new piston rings in while I'm at it.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline Curtie223

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Re: 1978 GS1000EC
« Reply #12 on: January 14, 2013, 06:37:27 pm »
Ouch... not good. :(

 2001 KTM 300exc 
 2004 LTZ400



-When you see another rider keep in mind that is another friend you haven't had the chance to meet yet!!
-Riding is about doing what you love! No matter what you ride or how you ride. Just as long as you

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #13 on: January 15, 2013, 11:34:01 am »
WELL, that kinda sux butt ......
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #14 on: January 15, 2013, 01:54:29 pm »
Not really a huge deal, I already have a complete engine gasket set and I can pull the head and cylinders off with the engine in the frame. Just need to pick up a set of rings and hone the cylinders. I would like to have the intake/exhaust ports polished while I have the head off if anyone knows someone that can do it.
I'm also going to pick up a set of stainless spokes and have the wheels relaced if anyone knows someone that does that.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #15 on: January 19, 2013, 03:25:41 am »
FBG can do the head. And Tony (aka sharkbite) can lace the wheels I believe.
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline Deuce

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Re: 1978 GS1000EC
« Reply #16 on: January 19, 2013, 08:51:13 am »
Awesome write up. It's easy to see you have a lot of love for this bike. It's been through quite a bit. And, it is super nice ride these days!
2006 VTX1300C 205/70/15 Hydroedge rear tire, Leatherlyke Bags, Batwing, Cobra floor boards, Vance & Hines pipes, LEDGlow, Pair Mod, Kuryakin Hypercharger Pro, Mustang seat, Cobra passing lights, Cobra Case Gaurds, 3" Fork extensions, 1800C Shocks, Cobra Tach, Custom Risers, Custom Kickstand, and a  WOLO Badboy Horn.

Offline Curtie223

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Re: Re: 1978 GS1000EC
« Reply #17 on: January 21, 2013, 12:44:28 pm »
Sharkbite can lace wheels? That's great to know!!

 2001 KTM 300exc 
 2004 LTZ400



-When you see another rider keep in mind that is another friend you haven't had the chance to meet yet!!
-Riding is about doing what you love! No matter what you ride or how you ride. Just as long as you

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #18 on: January 22, 2013, 04:15:51 am »
Yea, I'm pretty sure he told me he does. I used to , but don't have the stuff to do it right now. I will again next year prob......
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline Deuce

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Re: 1978 GS1000EC
« Reply #19 on: January 22, 2013, 04:26:32 am »
Yea, I'm pretty sure he told me he does. I used to , but don't have the stuff to do it right now. I will again next year prob......

I done one with a set of ignition pliers and a rod to spin it on... :34
2006 VTX1300C 205/70/15 Hydroedge rear tire, Leatherlyke Bags, Batwing, Cobra floor boards, Vance & Hines pipes, LEDGlow, Pair Mod, Kuryakin Hypercharger Pro, Mustang seat, Cobra passing lights, Cobra Case Gaurds, 3" Fork extensions, 1800C Shocks, Cobra Tach, Custom Risers, Custom Kickstand, and a  WOLO Badboy Horn.

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #20 on: January 23, 2013, 02:00:57 pm »
HAHAHHA, thats how i used to make all my BMX and MX wheels when i was younger ...
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline jeff5150

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Re: 1978 GS1000EC
« Reply #21 on: February 08, 2013, 11:13:23 am »
Iac... Dennis Hawkins at Precision Machine does all my headwork. very good and very reasonable also.... if you wanted to come up after you pull it off we could take it over there and let him take a look...
81 gl1100....

Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #22 on: April 04, 2013, 09:24:41 pm »
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #23 on: April 06, 2013, 05:11:48 pm »
While shopping for rings I stumbled across a killer deal on a big bore kit so the GS thou may end up an 1100.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #24 on: April 06, 2013, 09:03:35 pm »
Kris gave me the green light on the big bore kit as my birthday present. Once I get the pistons I'll be taking the cylinders to be machined.
The only concern I have is that going with a 73.5mm piston leaves no room for future honing so I'm going to be on the look out for a spare set of cylinders to have just in case.
I'll also be hunting some aftermarket cams to make better use of the larger displacement.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline Deuce

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Re: 1978 GS1000EC
« Reply #25 on: April 06, 2013, 09:49:39 pm »
 :21
2006 VTX1300C 205/70/15 Hydroedge rear tire, Leatherlyke Bags, Batwing, Cobra floor boards, Vance & Hines pipes, LEDGlow, Pair Mod, Kuryakin Hypercharger Pro, Mustang seat, Cobra passing lights, Cobra Case Gaurds, 3" Fork extensions, 1800C Shocks, Cobra Tach, Custom Risers, Custom Kickstand, and a  WOLO Badboy Horn.

Offline Curtie223

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Re: Re: 1978 GS1000EC
« Reply #26 on: April 07, 2013, 08:45:45 am »
Nice, man that will be fun.

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 2001 KTM 300exc 
 2004 LTZ400



-When you see another rider keep in mind that is another friend you haven't had the chance to meet yet!!
-Riding is about doing what you love! No matter what you ride or how you ride. Just as long as you

Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #27 on: April 07, 2013, 10:24:40 am »
I think so too. I don't think I'll gain much HP with the factory cams but I should net a good bit of torque so the old girl will pull like a freight train.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R

Offline gotgixers

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Re: 1978 GS1000EC
« Reply #28 on: April 12, 2013, 12:45:23 pm »
AWESOME !!!! :happypep  :21  :happypep  :21
I PITY THE FOOL, THAT DONT RIDE OLDSCHOOL


Offline IanC

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Re: Re: 1978 GS1000EC
« Reply #29 on: April 14, 2013, 02:27:03 pm »
Dropped the body work off with Gr8whiteGSXR today. After digging into the previous repair we were shocked to find jb weld, fiberglass mat and a crap load of bondo. I was not happy.

The cylinders and pistons are being dropped off at the machine shop tomorrow.
1978 Suzuki GS1000EC - Completely custom.
2012 Triumph Daytona 675R