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Hi, this is my first post here, so I thought I'd share my project.
It is a '77 GS750
I found this in a barn last fall and it had sat for 20 some odd years. Last titled in '82; it looked like this when I found it, and beleive me, it looks to be in better condition than it actually was.


The full path of my exploits is here, so I won't bore everyone or bother typing it all again.
http://www.thegsresources.com/_forum/showthread.php?t=112598

Anyway, this is my first rebuild & actually the first time I really tried something so involved. Other than pay a guy to cover the saddle I made, and have a few broken studs removed, I've done everything myself. Short of splitting the engine case, every part on the bike has been rebuilt or replaced. New Paint, gaskets, bearings, harness, top end, Dyna ignition, and the list goes on. I found a set of 37mm forks and a dual disk setup, along with an aluminum swingarm, so those items have been upgraded from stock. The rearsets are adapted from a Bandit, and a set of 29mm smoothbores are in the works. The paint is Nason (PPG) Corvette Red & Arctic White with silver pinstripes.

Before it was ready to ride, it took me 363 days, mostly working on weekends and whenever I had spare time, but here's the result:





Bikes: 05 Triumph & 77 GS750

Edited by - dardoonk on Jan 08 2008 12:55:10 AM
 

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Very nice looking, you've done good work. I'm doing something similar with a CB750 that I saved out of a garage for free, except mine was mostly in boxes haha. I know I want to see more pictures though

22/m
1980 Honda CB750
1972 Oldsmobile 442
 

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looks good. bet it hauls butt too. think the cops will have a tough time reading the license plate with that white sticker on it.
btw, what kind of paint/finish did you use on the cylinders/head?
-parks
 

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quote:
looks good. bet it hauls butt too. think the cops will have a tough time reading the license plate with that white sticker on it.
btw, what kind of paint/finish did you use on the cylinders/head?
-parks
LOL.. I white tag #'s out if I post a pic online..
I'm just getting the carbs sorted out and working thru the break in period, but the motor feels pretty snappy so far. I've got a line on a 1000 engine that I'll give an 1100 big-bore & valve work to. I'd like to see a solid 100rwhp out of that engine. Then, my friend, she will scoot. :D

The black on the engine is (I hate to admit this..) Harley-Davidson wrinkle black paint. It's their own branded rattle can & a bit costly, but I would reccomend it to anyone that wants a flat black wrinkle finish. It does last forever and you can touch it up a couple years later it can't even tell where the new paint is. Very Nice..
On my block, I laid it down medium-wet, so it doesn't wrinkle as fast, then shot one light coat of Dupli engine clear before it dried. I ended up with a semi-satin, semi-wrinkle look.

Bikes: 05 Triumph & 77 GS750
 

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That wrinkle paint is good stuff. PJ1 makes the same paint for a few bucks less.

Gas Right, Clutch Left
 

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doonk, great job. what really gets me on this build is that everything is as nice as everything else. nothing sticks out as over the top, nothing needs attention. sweet ride. cheers, bcr
 

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quote:
doonk, great job. what really gets me on this build is that everything is as nice as everything else. nothing sticks out as over the top, nothing needs attention. sweet ride. cheers, bcr
I agree, Awesome Job There on that GS750!<img src=icon_smile_cool.gif border=0 align=middle> To me, it says a lot about a person who can make the whole bike look equally well and, like bcr said, you've done just that! Fantastic job!

Later on, Bill
 

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Thanks for the props, guys. I want the bike to look more like a restoration than some kind of custom piece, so I've tried to make sure no one thing strays too far from what would have been available around 1980, but still give it my own style.

Obviously, the LED taillight wouldn't have been, but I tried to choose a pretty vanilla design for it since bikes from this era had pretty generic looking lights. It also draws less current and the charging system is a weak link on these bikes. Eventually, all the standard bulbs will be replaced with LED's. I planned ahead for this when I replaced the huge stock signals with smaller ones. The new marker lights have double lenses; clear on the outside with an orange cover inside covering the bulb, so you can't tell it is an LED.


I had been trying to adapt a set of Raask rearsets (circa 1972) that I found, but I didn't want to modify them, so they'll have to go on another project. Actually, I was hesitant to even put the Bandit rearsets on because of the winged shape of the guard. Since it basically follows the lines of the frame & also provided a location to mount a more modern rear master cylinder, I went ahead and did it.

Even though my "official" finish date was the day before Thanksgiving, I do have more to do. Since I don't ride much from Dec thru mid-March, my "to-do" list is now underway. Most of this I couldn't do until I had a running bike:

Valve-adjustment- DONE (again)- When I built the motor, the valves were set on the tight side of the spec, but I've learned the GS runs better when set at or slightly over the factory spec.

Charging System - UNDERWAY - During the build, I upgraded the historically poor performing factory R&R (separate units on the GS) with a better integrated unit off a newer Honda. I had also rebuilt the entire wiring harness and bought a new battery. Until I had a running bike, I couldn't check the stator and right now it doesn't seem to be providing enough juice.

Carburation - GETTING CLOSER - The carbs got mostly all new parts, but finding the sweet spot is a slow process, especially when trying to tune in 40degree weather when I know most of my riding will be in 85degrees. The Mikuni VM carbs are mechanical slides, and is new for me since most of my experience is with Keihin CV's. If I were using an airbox and more restrictive exhaust, tuning would be easier. (but it wouldn't sound as cool) <img src=icon_smile_big.gif border=0 align=middle> Right now, the idle doesn't drop off quick enough, but I think my fuel level is too high. I have 17.5 pilots and 117.5 main jets installed right now, so if anyone has any experience tuning these GS's, feel free to comment.

BTW, the carb issue may be a moot point if I can land the set of 29mm smoothbores from a guy I know. I'll have to start all over.

Bikes: 05 Triumph & 77 GS750
 
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