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Search results

  1. gwyon

    re-rehabbing a 1978 GS750

    Carbs dunked, poked, blown out, washed, new o rings installed, bench-synced, and fuel service levels adjusted. While I had access, I adjusted the timing chain tensioner (I have a manual one, and it was fine). I checked the cam lobe clearances (also fine). I cleaned and re-oiled the foam air...
  2. gwyon

    re-rehabbing a 1978 GS750

    Thank you, Rich82GS750TZ. Yes, I'm using a Pingel petcock. After the carbs are on, I'll check the valves again, and I want to check compression too. Thanks for your help.
  3. gwyon

    re-rehabbing a 1978 GS750

    Back in 2015, I was able to restore a neglected 1978 GS750, including rebuilding the top end, carburetors, brake calipers, making new brake lines, a new wiring harness, installing new bearings, new shocks, etc. I couldn't have done any of it without the posts and tutorials written by some kind...
  4. gwyon

    vm26 mystery spring

    Nope and nope. All those springs are in place. I put the carbs back on today. Runs great. I guess I'll never know where that mystery spring came from. Thanks to everyone for helping.
  5. gwyon

    vm26 mystery spring

    Jhurt -- Nope, I've got that spring in its place. I thought about that spring too, because it's close in size and sits inside a bore. I took it out and compared the two springs. It's a bit wider and longer than the mystery spring. But thank you for thinking about this. Steve -- I bought the...
  6. gwyon

    vm26 mystery spring

    Nope. Air pilot screw springs are accounted for. This spring looks like it would sit inside a cylindrical bore somewhere on the carb rack or somewhere else. I thought it might be part of a throttle stop screw assembly, but I have those springs in place. I appreciate all ideas. Thanks.
  7. gwyon

    vm26 mystery spring

    Here's a photo with the three springs at the center of the carb rack. Idle adjuster spring is in place.
  8. gwyon

    vm26 mystery spring

    I've got stock Mikuni VM26 carburetors on my 1978 GS750. I washed the carbs and the carb rack in Simple Green, and I found a spring in the cleaning bucket. It's 6.25 mm o.d. and about 10.30 mm long, very stiff. The ends of the spring are ground flat. One end is shiny, the other end is a bit...
  9. gwyon

    1978 GS750, Saving a strange project..

    Here it is, from Chuck Hahn: http://www.thegsresources.com/_forum/showthread.php?229045-77-gs750-jet-size
  10. gwyon

    1978 GS750, Saving a strange project..

    http://www.thegsresources.com/_forum/showthread.php?193730-Colored-wiring-diagrams If you're going to make a new wiring harness, this thread with colored wiring diagrams might help you. The author includes a diagram of a 78 750's stock wiring, plus a diagram with relay modifications. I did...
  11. gwyon

    How likely is it that my timing chain jumped? 1982 Gs550

    First, I'm nowhere near as knowledgeable as some of the guys here. Just want to be honest about that. Second, I'm not saying my problem was the same as yours. Measuring your timing chain is the best idea. With the old chain in place on the camshaft sprockets, I used a Dremel tool to grind...
  12. gwyon

    How likely is it that my timing chain jumped? 1982 Gs550

    From what I've read here, a worn timing chain is rare, but it happens. I've got a '78 750, and I had to replace my timing chain. I bought the bike in 2015 with 19k miles on it. Lots of swapped parts on the bike, so I don't place much confidence in the odometer. Trying to set the cam shafts...
  13. gwyon

    First Time Restorer--1978 GS750

    Single front disc and spoke wheels usually indicates a 1977 model.
  14. gwyon

    First Time Restorer--1978 GS750

    Maybe it's just because I have the same bike, but it seems like there is suddenly a bunch of '78 750s being worked on here. Search the posts on the regulator/rectifier upgrade and wiring mod. The original design tended to damage stators and cause fires in the headlight bucket. (When I bought...
  15. gwyon

    New Project: 78 GS750

    Follow the clutch cable down to a small cover on the left side. The tank parts you need are a couple of rubber cushions and a steel spacer. Fiche is your friend. http://www.suzukipartshouse.com/oemparts/a/suz/50d3fecff8700230d8b4dcc3/fuel-tank-gs750c
  16. gwyon

    what did you wrench on today??

    Those are VM26SS carbs off your 750? If so, I have a used bowl gasket you can have.
  17. gwyon

    1977 GS750e project

    I found this in a box of parts that came with my 750. It's identical to the perch on my bike, so it should fit yours. Pretty mugly though. The bolts and cable adjuster are rusty. Yours free if you want it. :)
  18. gwyon

    1977 GS750e project

    I'm new to motorcycles, so I don't consider myself experienced enough to recommend anything yet. My main harness was cut up, brittle, and nasty. While I had the tank, seat, carbs, and air box off, I made a new harness right on the bike. I had zero faith in my ability to do it, so I used cheap...
  19. gwyon

    1977 GS750e project

    If you're thinking about major rewiring, here is a link to some color wiring diagrams that one member kindly made and shared. http://www.thegsresources.com/_forum/showthread.php?193730-Colored-wiring-diagrams There is a diagram for the '78 750 which should be the same as your '77 (separate...
  20. gwyon

    New member in Sweden but American most of my life

    Hi jibledso. I've got the 1978 750. I think the '77 model had a single front disc and spoke rims. The '77 also had a flat seat, like yours. My '78 seat is stepped. So either someone shaved down the seat on a '78 or put alloy wheels and two discs on a '77. Is that a 4 into 1 exhaust? I...
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