• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

76 GS750 project

theturbomrt

Forum Newbie
HI all! Welcome to my intro post / ongoing project

A coworker of mine found out I used to ride and know how to do *things* so he picked up this GS750 and gave it to me as a project. $37 after fees on k-bid.
image.png
 
The motor turned with the kick starter, and away we go

First off, the starter wouldn't engage. Turns out the intermediate gear was on backwards. Corrected that and it turns!

Next, the stator was missing and flywheel was grenaded. So off to eBay


Next up is a carb rebuild.
​​
Off the IV fuel tank, it fired up on 2 cylinders. Swapping the condensers to the other points had the other two cylinders firing, so to Amazon for a hall effect ignition module. After that, we had fire on all 4. It was a little smokey with the cylinders full of Marvel Mystery




Next up was a carb balance, and we have a smooth idle.

After that I rebuilt the rear brake caliper and master, and got some rear brake going. Swapped the front triple and added the second front brake from the GS750E



*star wars speeder noises*​

Also, got the no-title auction bike titled and registered!



After that it was time for a test ride. It did well down the street and back (about 100 yards) with no air in the rear tire. Tires were, by my best guess, from '87 and '90





BT 46's on​





It didn't run great over 1/2 throttle. Apparently you have to tighten those jets!


I put the original parts in the ultrasonic and put them in with new o-rings instead of the aftermarket rebuild kit. Running strong now!

Pounded some dents from the front fender


Gave it a wash and a LED headlight
​​


Unpictured: fixed a rats nest of wiring and got an ignition switch for it - someone had rewired it with a tractor/ag key switch!

I've put about 10 miles on it but found that:
a. the bezos-mart petcock uses a smaller nipple than stock for vacuum and it fell off - leaving me dead in the water until I put it on prime
b. the battery didn't like being used so much without charging, so no dice when I was on the road with the above issue. Lucky for the kick starter!
c. I have a stiff link in the chain. I'm going with 520 chain as the replacement (ah, technology has come a long way) and waiting on parts

Future plans involve the Polaris R/R, a valve adjustment, putting some patina-shine on the tank and riding the piss out of her​


​​
​​
 
Good Work.
Using this site to host your pics limits the size and only one pic per post. We don't have the space. Clues to better picture posting and up to 10 pics in a post linked in my signature. It involves hosting your pictures on another pic hosting site like Imgur, Flickr, or ImgBB, copying the BBCode and pasting in your post. Go to post # 6 in this thread linked below:


https://www.thegsresources.com/_for...-to-post-more-than-one-pic-or-am-I-just-lame=
 
Turns out the hose on my compression gauge is leaky - used a different hose and I'm in spec for cold compression across the board now [TABLE="width: 379"]
[TR]
[TD="class: xl63"]cold[/TD]
[TD="class: xl63, align: right"]1[/TD]
[TD="class: xl63, align: right"]2[/TD]
[TD="class: xl63, align: right"]3[/TD]
[TD="class: xl63, align: right"]4[/TD]
[/TR]
[TR]
[TD="class: xl63"]Compression (PSI)[/TD]
[TD="class: xl63, align: right"]115[/TD]
[TD="class: xl63, align: right"]118[/TD]
[TD="class: xl63, align: right"]113[/TD]
[TD="class: xl63, align: right"]120[/TD]
[/TR]
[/TABLE]
 

Attachments

  • image.png
    image.png
    1.9 KB · Views: 0
Valves were all in spec [TABLE="width: 236"]
[TR]
[TD="class: xl65"]Exhaust[/TD]
[TD="class: xl65, align: right"]1[/TD]
[TD="class: xl65, align: right"]2[/TD]
[TD="class: xl65, align: right"]3[/TD]
[TD="class: xl65, align: right"]4[/TD]
[/TR]
[TR]
[TD="class: xl65"]Spec[/TD]
[TD="class: xl65, align: right"]0.06[/TD]
[TD="class: xl65, align: right"]0.08[/TD]
[TD="class: xl65, align: right"]0.04[/TD]
[TD="class: xl65, align: right"]0.06[/TD]
[/TR]
[TR]
[TD="class: xl65"][0.03-0.08mm][/TD]
[TD="class: xl65, align: right"]0.04[/TD]
[TD="class: xl65, align: right"]0.06[/TD]
[TD="class: xl65, align: right"]0.06[/TD]
[TD="class: xl65, align: right"]0.06[/TD]
[/TR]
[TR]
[TD="class: xl65"]Intake[/TD]
[TD="class: xl65, align: right"]1[/TD]
[TD="class: xl65, align: right"]2[/TD]
[TD="class: xl65, align: right"]3[/TD]
[TD="class: xl65, align: right"]4[/TD]
[/TR]
[/TABLE]
​​
 
Back
Top