dardoonk
New Member
Hi, found this site & thought I'd join. Lots of great bikes here.
Here's mine - http://www.bikepics.com/members/dardoonk/77gs750/
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.
Here's what I started with.
http://www.thegsresources.com/_forum/showthread.php?t=112598
Here's a shot as I was progressing.
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:
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) 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.
Here's mine - http://www.bikepics.com/members/dardoonk/77gs750/
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.
Here's what I started with.
http://www.thegsresources.com/_forum/showthread.php?t=112598
Here's a shot as I was progressing.
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:
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) 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.