Original GT550 cylinders
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tennesseetwostroke
- On the street
- Posts: 16
- Joined: Sat Oct 24, 2015 3:09 pm
- Country: USA
- Suzuki 2-Strokes: GT550L x2 TS400
Original GT550 cylinders
Hello, new member here. I am trying to restore a 74 GT550. I need to know how to tell if the cylinders are plated or not. It was a low mileage bike that sat for years after seizing. The original cylinders look good, small discoloration in spots no pits or scoring. It came apart fairly easy after soaking in kroil for a couple of weeks. I also have a spare motor that has been bored .50mm over. Those look rough and would need to be bored again. My problem is not knowing what the originals are. The cruzinimage piston sets for std. bore are made for nykasil and non nykasil. I hope to get to a shop that may be able to tell what they are. If i can't determine what they are and they are nykasil, can they be bored over without sleeving them? This is my second GT. I lost the first one to drunk driver in 1984. Thanks to anyone that can help!
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rngdng
- AMA Superbike
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- Joined: Tue Oct 14, 2008 6:47 pm
- Location: Blythewood, SC, USA
Re: Original GT550 cylinders
I doubt it's got the plated cylinders. I understand they only went to other countries... Coyote will know.
Lane
Lane
If you stroke it more than twice; you're playing with it.
Too many bikes, too much time, ENOUGH SPACE, FINALLY! Never enough money.........
Too many bikes, too much time, ENOUGH SPACE, FINALLY! Never enough money.........
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Alan H
- Moto GP
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- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: Original GT550 cylinders
If the rear cylinder base studs are stepped higher than the fronts, it's plated. There are also extra ports.
Nikasil plated cylinders were not used in the us.
Nikasil plated cylinders were not used in the us.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
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Coyote
- Moto GP
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- Joined: Tue Oct 21, 2008 2:41 pm
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- Suzuki 2-Strokes: GT550x2, GT750, GS1000
- Location: Tulsa, Oklahoma
Re: Original GT550 cylinders
You would be safe to assume the cylinders are not plated -- unless the bike was imported from Great Britain, Italy etc. None of the 550's sold in north America had plated cylinders.
Also if the bike has the cross overs on the head pipes, it's an American model. The exhaust cross overs were dropped on the European models. I believe that was in 74. Alan?
Also if the bike has the cross overs on the head pipes, it's an American model. The exhaust cross overs were dropped on the European models. I believe that was in 74. Alan?
I was born with nothing and still have most of it left.
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1978 GS1000C
1976 GT550 ongoing money pit.
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1978 GS1000C
1976 GT550 ongoing money pit.
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Alan H
- Moto GP
- Posts: 3250
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: Original GT550 cylinders
Yes, that's right. The J (72) and K (73) had them and some of the L's I understand, then the rest had the separates.
More info HERE (clicky) and HERE .
The OJB site in the first link is a very good read.
More info HERE (clicky) and HERE .
The OJB site in the first link is a very good read.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
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tennesseetwostroke
- On the street
- Posts: 16
- Joined: Sat Oct 24, 2015 3:09 pm
- Country: USA
- Suzuki 2-Strokes: GT550L x2 TS400
Re: Original GT550 cylinders
Thanks for the info. I don't guess I have ever seen plated cylinders so I would not know what to look for. Been out of motorcycling for a long time so I gotta find a machine shop as the one I used 30 years ago isn't there anymore. Again thanks for the replies.
