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1979 GS750E Project Pointers

  • Thread starter Thread starter hairfromthepast
  • Start date Start date
H

hairfromthepast

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Hello everyone, this is my first post on the forum and my first motorbike. I've been kindly donated a shaft-driven 1979 GS750E Japanese import from a friend who was moving back to Australia. Absolutely delighted to have been donated such a classic. It was driven from the UK to France and then to Turkey and back and it's still going! My aim is to take the bike to pieces then rebuild and refurbish everything whilst adding a few modern safety systems and a personalised cafe racer-esque touch. My issue is I'm unsure of where to start. Would anyone be kind enough to point me in the right direction?

Thanks

Kenny
 
hairfromthepast said:
Hello everyone, this is my first post on the forum and my first motorbike. I've been kindly donated a shaft-driven 1979 GS750E Japanese import from a friend who was moving back to Australia. Absolutely delighted to have been donated such a classic. It was driven from the UK to France and then to Turkey and back and it's still going! My aim is to take the bike to pieces then rebuild and refurbish everything whilst adding a few modern safety systems and a personalised cafe racer-esque touch. My issue is I'm unsure of where to start. Would anyone be kind enough to point me in the right direction?

Thanks

Kenny
Click to expand...

I know I would like to see a few pictures!
 
My aim is to take the bike to pieces then rebuild and refurbish everything whilst adding a few modern safety systems (...) My issue is I'm unsure of where to start. Would anyone be kind enough to point me in the right direction?
Click to expand...

Judging from the picture you have provided that bike was stored indoors for some time. In this case, I wouldn't take it apart, instead, focus on getting it road-worthy again.

So first read the top 10 newbie mistakes thread.

Then:
1. Clean the carbs
2. Replace the intake boot o-rings if necessary (it most likely will be)
3. Replace the air intake filter (it will have crumbled apart by now)
3. Check the valve clearance
4. Replace the engine oil (Shaft, not yet)
5. Check the charging system with posplayr's quick test thread
7. Check tires (you don't want to ride with cracking rubber), brakes, lights and all that stuff that makes it safe to go out on the road and traffic
8. Now read your bike's manual to learn what other maintenance tasks are to be done, and catch up
9. You can now plan to add your personal touch.

If you begin with 9 instead, you will end up with a never-ending story of a bike that you can't ride often, or not at all.

edit:
whilst adding a few modern safety systems
Click to expand...

This confuses me.
 
Last edited:
I believe they started making four stroke 750's in 1977. I know I've got a '78!
 
Judging from the picture you have provided that bike was stored indoors for some time. In this case, I wouldn't take it apart, instead, focus on getting it road-worthy again.
Click to expand...

Thanks for the reply, the bike was running "OK" during the summer but only took it for a few wee runs to keep things moving, seemed pretty low on power. Now I just need to get a gas heater for my garage and I'll be on my way.

By safety systems I meant upgraded brakes and suspension, just to make it a little safer on the road. The previous owner suggested '90's Katana suspension and brakes with better cooling.
 
steve murdoch said:
I did not know they made a 750cc G.
Are you sure it is a '79?
Click to expand...

Steve, I'm only going on what the previous owner said to me. I'm currently waiting for the V5C registration document to come through the post and that should confirm things. Bear in mind it was a Japanese import but I could be getting confused.
 
allojohn said:
Steve is talking about the shaft drive. No shaft drive 750's in '78 or '79.
Click to expand...
John, the previous owner told me it was a '79E, the frame and engine serial numbers say it is a G. I will confirm everything once I receive the V5C.

Kenny
 
I wouldn't trust a word any PO said, unless you know him of course LOL.
 
Update

Update

Hey guys, it's been a while but I can finally post an update. So the bike's definitely a 750G shaft driven Japanese import but not sure of the year. Does anyone know if there's a way to tell?

Have finally found someone with experience to give me some pointers and a little bit of a hand. This morning we took the carbs apart and gave them a good clean, unfortunately it seems like someone had previously tried to repair a broken float post, it's still in place and holding (one for the future). Also checked the air filter and boot rings which will need replacing, and he advised me to change the gaskets once i had all the other maintenance complete.

Finally we found that the fuel cock is not working, so that'll most likely be why I couldn't get the bike to start. So this week I'll be emptying the tank and trying to figure out if I can fix or have to replace the cock. All in all a successful start to the autumn.
 

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Carburettors including repaired float post
 

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Clean the entire bike thoroughly before you go any further. That would be my suggestion. Plug the intakes since you have the carbs off.
I started as you did, by disassembling a dirty bike, figuring I could clean and recondition parts as I go. It would have been much easier, and gone a lot quicker if I had just scrubbed the entire bike down well before I started digging in to anything.
 
Someone want to chip in on this? The VIN & engine # look odd to me, but I'm easily confused about these things. Could this be a '79 GS750G for the Japanese market only?
 
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