78 750 Bobber Project

[krsmetalhed1988]

Started chopping and hard tailing my current project. I picked it up for $300 not running. Did some tinkering and got it to fire up. Now the fun begins. Stretching the swingarm 2.5" to keep the proportions correct. I feel if you hardtail our bikes with the stock wheelbase it makes it look stubby. The goal is to use everything possible from the stock bike to keep cost down. I have more pics coming tomorrow.

[jmlcolorado]

Excelent start. Ill be keeping my eye on this thred!! Im working on a hardtail myself. Sesarch " The 80 gs1000 chopper build "

[krsmetalhed1988]

Nice project jmlcolorado..New pics of the welded rear section. Seat area gussets welded in. I am currently working on the rear axle gusset for extra support and a gusset for the lower portion of the welded hartail. More pics after I get the other parts welded up. Oh yea I am a little rusty on the TIG welds, good penetration just not the prettiest.

[Richharr]

pretty impressed, couple of questions.

1. can you post some pics of the jig, specs and whatever else you have on it (shopping list, links, etc)

2. whats the drop on the frame?

3. are you using the original mounts for foot controls?

Your welds look fine. I would just suggest that you make a single backbone now while the frame is stripped in case you want to run a different tank. keep the pics coming

[krsmetalhed1988]

The plans for the jig can be downloaded for free from crimescenechoppers website. I am not sure on a price because I got most of the materials from my previous employer. The frame has about 7" of ground clearance. I have two other hardtail gs frames and they are both lower to the ground. I wanted to keep this one a little higher to improve the cornering and have more exhuast options. I am working on the foot controls today and will have pictures this evening. Yea I thought about the backbone but I was trying to keep this one a little more simple. I am actual looking for a tank similar to the one on your bike.


Rear Gussets being installed.

[jmlcolorado]

I think your welds look fine. The look of the weld doesnt matter as much as the penatration. I started with an arc welder but then i choose to hardtail the frame so i had to step it up to a 220 MIG. Mine sure as hell arnt pretty but the welds are strong.

The neck got a TON of weld in it as well as a chunk of 3/8 flat stock for some extra insurance. The neck is stronger now then it was stock.

Great looking bike so far man. I wish mine was chain drivin. Id have alot more options opened up. I was thinking of stretching mine a few in the rear as well but i didnt want the hastle of adding to the shaft, then balancing it. Plus if something were to go wrong, another custom shaft would have to be made.

[po-boy]

That's one of the best lookin hardtailed GS frames I've seen, and I've searched for over a year. Nice work there man! Did you slug the bottom rails or just flush weld? I do think after goin through all that, I'd do the single top tube, just my $.02... I'll be in Daytona in late July, I'll swing by and drop off my frame and you can duplicate your efforts on it for beer? Seriously though, nice job and keep those pics comin.

[krsmetalhed1988]

Yea that is a lot of custom fabrication and machining to lengthen the shaftie. Here is the other two frames I have done. Neither project is complete at this point
82 750

79 1000

[krsmetalhed1988]

Here are the gussets installed, 3/8" plate. Foot controls in the the stock locations. One more weld to do tomorrow. I also need to figure out how I want to cap off the frame rail that was cut.




lower gusset

Rear axle plate gusset

[briyenkieth]

[QUOTE=krsmetalhed1988;952888] I also need to figure out how I want to cap off the frame rail that was cut.


Here's what I did. Your frame looks so slick all tigged up nice! Wish I had one availible when I was doing mine.

[krsmetalhed1988]

any new pics of the project in your profile?

[jmlcolorado]

I have a buddy of mine thats workin on another 80 shafty 1000. He wants a set of springers on his bike. Where did you find yours at?!?!?! Are the measurements the same on the 750's and 1000's?

And what measurements should he be looking for in his to get it to fit?
One last questoion....... Can he reuse the factory "star spoked" rim if he used some kind of spacers?

Thanks a ton.
I LOVE the look of this bike.

When did you start your current project? I saw you started this thread a couple days ago and your CRUZIN through the build! Great job!

[briyenkieth]

any new pics of the project in your profile?

if you mean mine, not in my profile but in photobucket. Under the same user name, should be set to public still.

[krsmetalhed1988]

I will check that out. That front end and wheels are all harley. -4" springer. The neck was machined on a lathe and will except Honda CB750 and Harley bearing cups. That frame was basicaly copied from the Super Bobber frame sold by cycle exchange. They have alot of Honda CB stuff. I was originally going to do a CB750, but I came across this Suzuki. Cycle exchange sells the machine necks for a reasonable price.

[jmlcolorado]

Wont swapping out the neck for a milled version make Regestering the bike pretty complicated since there is no longer an origional vin stamped on the neck?