What The Heck Is This ???
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- H2RICK
- AMA Superbike
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What The Heck Is This ???
I came across something in the February issue of Classic Motorcycle Mechanics that I don't remember seeing before.
This view is of a GT550A carb on what I believe is a UK/Euro spec bike.
I've never seen this kind of one piece carb linkage boot before. Can anyone enlighten me as to whether or not this was stock on all the L and later UK/Euro 380/550 bikes ?? Later replacement pieces maybe ??
It also appears as if the enrichener lever is different too.
Enquiring mind(s) want to know.
We in North America got the two piece boots, of course.
BTW, this issue of CMM has a bunch great articles for newbies, two of which are dismantling a 550 motor and a comparo of a 550 to an H1.
There are additional articles of general interest, too.
This view is of a GT550A carb on what I believe is a UK/Euro spec bike.
I've never seen this kind of one piece carb linkage boot before. Can anyone enlighten me as to whether or not this was stock on all the L and later UK/Euro 380/550 bikes ?? Later replacement pieces maybe ??
It also appears as if the enrichener lever is different too.
Enquiring mind(s) want to know.
We in North America got the two piece boots, of course.
BTW, this issue of CMM has a bunch great articles for newbies, two of which are dismantling a 550 motor and a comparo of a 550 to an H1.
There are additional articles of general interest, too.
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GT550A Mint & Original
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
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Re: What The Heck Is This ???
Hey Rick, that looks like an aftermarket fuel tap, too, it's a vac device but doesn't look like the usual GT triple unit.
I'm pretty certain the "concertina" boots are aftermarket replacements, although the top boot covering the lifter pivot looks stock.
The bikes photographed are based in Spain, so it may be a mix of locally-sourced aftermarket parts to keep the bikes on the road, and / or some regional differences in spec.
As Rocky Garzone will testify, the Italian market got a unique 384cc version of the 380 due to a local regulatory / insurance peculiarity (1mm larger bores), I believe Rocky has one bored out to 401cc
I bet the 8% extra capacity adds a little grunt 
I'm pretty certain the "concertina" boots are aftermarket replacements, although the top boot covering the lifter pivot looks stock.
The bikes photographed are based in Spain, so it may be a mix of locally-sourced aftermarket parts to keep the bikes on the road, and / or some regional differences in spec.
As Rocky Garzone will testify, the Italian market got a unique 384cc version of the 380 due to a local regulatory / insurance peculiarity (1mm larger bores), I believe Rocky has one bored out to 401cc


1976 GT380 - wounded by me, and sold on
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
- johnakay
- I likes them jubblies
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Re: What The Heck Is This ???
I have a feeling that Rocky is no longer with us or that he is seriously ill.
I have not heard from him since last year and it is not like Rocky not to reply to my emails.
I have not heard from him since last year and it is not like Rocky not to reply to my emails.

If I wanted to make a life-long career out of
working with the mentally retarded I would
have opened a Harley Davidson Dealership
working with the mentally retarded I would
have opened a Harley Davidson Dealership
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Re: What The Heck Is This ???
Oh hell, I hope not 

1976 GT380 - wounded by me, and sold on
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
- H2RICK
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Re: What The Heck Is This ???
I was hoping Rocky would have the answer, too.
I hope he's not sick....or worse.....
and what APPEARS to be an M model (going by the striping) BUT in Marble Scarlet/Laredo Red that was used on the L models in North America!!!
Stuff like this drives restorers crazy.....
I hope he's not sick....or worse.....

OK....that explains the differences. The article actually has two different 550's pictured in it.....an A model in Candy Rose/Targa Red that belongs to a gent in the UK......The bikes photographed are based in Spain, so it may be a mix of locally-sourced aftermarket parts to keep the bikes on the road, and / or some regional differences in spec.
and what APPEARS to be an M model (going by the striping) BUT in Marble Scarlet/Laredo Red that was used on the L models in North America!!!
Stuff like this drives restorers crazy.....

GT550A Mint & Original
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
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- To the on ramp
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Re: What The Heck Is This ???
Kind of like this manual I have here? Based on the paint color and striping it's a '75 but at least the pipes, kick starter, and front fender are all from an earlier model.H2RICK wrote:Stuff like this drives restorers crazy.....

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No really... it's supposed to smoke.
1974 Suzuki Nomad 340
1975 Suzuki GT750 Waterbuffalo
1974 Suzuki Nomad 340
1975 Suzuki GT750 Waterbuffalo
- tz375
- Moto GP
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Re: What The Heck Is This ???
And let's not forget that Suzuki, along with everyone else, did not do a clean model cut off. There were always parts introduced early and some later because of parts availability issues.
And they also appear to have used multiple suppliers. Case in point is L model front fenders. Both types appear in official Suzuki adverts.
And they also appear to have used multiple suppliers. Case in point is L model front fenders. Both types appear in official Suzuki adverts.
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Re: What The Heck Is This ???
http://s1225.photobucket.com/albums/ee3 ... ze1/GT550/" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Must admit my carb boots are the same as the one shown, and my bike was imported from the U.S.A. (San Fernando I believe) a 1975 model M
Must admit my carb boots are the same as the one shown, and my bike was imported from the U.S.A. (San Fernando I believe) a 1975 model M
- H2RICK
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Re: What The Heck Is This ???
The plot thickens.....
I have to say in all my years that I've never seen a one piece linkage boot. I wonder if it was tried for awhile and didn't work out ??
Maybe that's why my A model has a two piece setup ??
I sure would like to get my mitts on two or three paper parts books for the 550......say the 1974, 1976 and 1977 editions.....although I'm not sure the '77 edition even exists because that's about the time the factory switched over to microfiche parts lists.

I have to say in all my years that I've never seen a one piece linkage boot. I wonder if it was tried for awhile and didn't work out ??
Maybe that's why my A model has a two piece setup ??
I sure would like to get my mitts on two or three paper parts books for the 550......say the 1974, 1976 and 1977 editions.....although I'm not sure the '77 edition even exists because that's about the time the factory switched over to microfiche parts lists.

GT550A Mint & Original
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
- oldjapanesebikes
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Re: What The Heck Is This ???
Heard from him today - he was on his way to a Peter Frampton concertjohnakay wrote:I have a feeling that Rocky is no longer with us or that he is seriously ill.
I have not heard from him since last year and it is not like Rocky not to reply to my emails.


Ian
If at first you don't succeed, just get a bigger hammer !
If at first you don't succeed, just get a bigger hammer !
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Re: What The Heck Is This ???
[quote="oldjapanesebikes] he was on his way to a Peter Frampton concert [/quote]
That's worrying, we'd better arrange an intervention
Glad he seems OK.
That's worrying, we'd better arrange an intervention


Glad he seems OK.
1976 GT380 - wounded by me, and sold on
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
- johnakay
- I likes them jubblies
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- Joined: Wed Oct 15, 2008 11:19 am
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Re: What The Heck Is This ???
thats good news but why hasn't Rocky replied to my emails.
or got involve on here. Peter Frampton concert! one hit wonder
or got involve on here. Peter Frampton concert! one hit wonder

If I wanted to make a life-long career out of
working with the mentally retarded I would
have opened a Harley Davidson Dealership
working with the mentally retarded I would
have opened a Harley Davidson Dealership
- H2RICK
- AMA Superbike
- Posts: 1659
- Joined: Sun Oct 19, 2008 11:07 am
- Country: CANADA
- Suzuki 2-Strokes: GT550A, GSF1200SK6 currently
- Location: Cowtown aka Calgary, Canada
Re: What The Heck Is This ???
Glad to hear that, Ian. Rocky is a great source of knowledge on Euro spec bikes.....and his pics of his rides are great, too.
Peter Frampton ?? Well, he can play the guitar reasonably well.
I wonder why he doesn't tour more....
Peter Frampton ?? Well, he can play the guitar reasonably well.
I wonder why he doesn't tour more....
GT550A Mint & Original
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer
H2A Semi-Hot Rod Built From A Basket Case
KZ650C2 Mint & Original...mostly
GSF1200SK6 Bandit...My LD Ride
Additional H2 projects In Boxes.....
MBD Sufferer