Is it worth it?

JMO, but for 3K, my butt would be comfortably seated in the Corbin gunfighter that I had just installed on my 82-83 1100E.

[Griffin]

Bear in mind that a good, mechanically sound, cosmetically nice GS750 will fetch you up to about $1,600 or so on the market, tops. If it's customized, expect a little less for it (yes, less). With 100,000 + miles on it, even if the engine is rebuilt, I can't imagine anybody paying over $600-$700 for it, no matter how well it runs.

You asked if "it's worth it". If you want to own and ride a motorcycle you rescued, rebuilt, and put on the road yourself, then that's a question only you can answer. If you want to rebuild it and then resell it for what you have into it, or make a profit, then the answer is an emphatic "no".

OK - never had anything but HD v-twins in the past, and this 4-cyl thing is bending my gourd the more I read about it. Is in a lot of ways more simplistic, in a lot of ways more complicated. I haven't disassembled any of the engine yet, but it is free of the frame and sitting on the lift.

I paid $400 for a complete GS750 that wasn't running because quite a bit of the harness was missing, but I turned the engine by hand to make sure it wasn't siezed. I was told it had 26k miles on it, but when I got the title and the records, it showed it had flipped the odomoter once so it actually has 126k. I know these old engines are pretty bulletproof, but I was kind of hoping that someone could either tell me a few things to look out for that are common problems with these engines, or if there is someone in the Columbus, Ohio area I could bring it to that is knowledgeable with them, too, but for the most part?

I want to rebuild this bike with a lot of bells and whistles because at one time this was a quick and fun little scooter, but first I guess now that I know it's been ridden harder than I was led to believe, I want to make sure it's worth it before throwing $3k at it.

Thanks, all.

If the seller told you 26k but records show 126k wouldn't you take issue with him? If he didn't have a title showing this then I would excuse his ignorance for $400.
If this will be a custom project bike then $3k is your's to spend, but if you're looking for returning it to a stock, roadworthy bike then you should scout this forum for a "ready to ride" 750 for maybe under $2k and a lot less headaches since we are into riding season....just my opinion.

OK - never had anything but HD v-twins in the past, and this 4-cyl thing is bending my gourd the more I read about it. Is in a lot of ways more simplistic, in a lot of ways more complicated. I haven't disassembled any of the engine yet, but it is free of the frame and sitting on the lift.

I paid $400 for a complete GS750 that wasn't running because quite a bit of the harness was missing, but I turned the engine by hand to make sure it wasn't siezed. I was told it had 26k miles on it, but when I got the title and the records, it showed it had flipped the odomoter once so it actually has 126k. I know these old engines are pretty bulletproof, but I was kind of hoping that someone could either tell me a few things to look out for that are common problems with these engines, or if there is someone in the Columbus, Ohio area I could bring it to that is knowledgeable with them, too, but for the most part?

I want to rebuild this bike with a lot of bells and whistles because at one time this was a quick and fun little scooter, but first I guess now that I know it's been ridden harder than I was led to believe, I want to make sure it's worth it before throwing $3k at it.

Thanks, all.