I'm restoring this machine and not sure what goes where. hoping you can help.
Main thing is, what is supposed to pass through the hole behind the bottom of the head stock; the one about an inch diameter and has a rubber grommet? Is it one of the wire bundles or a cable?
Also, where's the correct points to attach the heavy ground wire from engine to frame?
thanks for any help.
Wire and cables routing GT550A
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- Still in the Driveway
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- Country: N.Ireland
- Suzuki 2-Strokes: GT550
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- Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
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Re: Wire and cables routing GT550A
You're suppose to take pictures before any tear down to save yourself from any dilemma. Luck for you, I did.
Here's the ground strap. Give me a minute and I'll add a few more pics of the head stock. These are from a 750, but the 550 nearly should be identical. If I remember correctly, the 550 ground is on the right side of the bike. Where the 750 is on the left.

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- AMA Superbike
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- Joined: Tue Jul 24, 2012 11:45 pm
- Country: U.S.
- Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
- Location: SW PA
Re: Wire and cables routing GT550A
Better idea of where the 550 one is. You can see it clearly under the side cover, near the oil pump cover. It attaches to the frame, engine mount.
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Last edited by pearljam724 on Sat Mar 30, 2013 2:27 pm, edited 1 time in total.
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- AMA Superbike
- Posts: 1681
- Joined: Tue Jul 24, 2012 11:45 pm
- Country: U.S.
- Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
- Location: SW PA
Re: Wire and cables routing GT550A
Headstock, nearly identical on the 750. Except you have a down tube hole for the radiator.
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- AMA Superbike
- Posts: 1681
- Joined: Tue Jul 24, 2012 11:45 pm
- Country: U.S.
- Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
- Location: SW PA
Re: Wire and cables routing GT550A
Another headstock pic. Cables and main harness are routed along it's side, strapped with rubber.
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Last edited by pearljam724 on Sat Mar 30, 2013 2:38 pm, edited 1 time in total.
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- AMA Superbike
- Posts: 1681
- Joined: Tue Jul 24, 2012 11:45 pm
- Country: U.S.
- Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
- Location: SW PA
Re: Wire and cables routing GT550A
A 550 headstock. To help.
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- Still in the Driveway
- Posts: 7
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- Country: N.Ireland
- Suzuki 2-Strokes: GT550
Re: Wire and cables routing GT550A
Big thanks for the pics! They help a lot.
I did take lots of pics for the engine rebuild, but in terms of frame and wiring it was an abandoned restoration when I bought it.
I did take lots of pics for the engine rebuild, but in terms of frame and wiring it was an abandoned restoration when I bought it.