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  1. #11
    Moderator QLD Shin-Ken 1074's Avatar
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    Quote Originally Posted by GSX1100SXZ.JP View Post
    Hello patrick,

    thank you for welcoming me and a picture.
    I am also very interested in SXZ story.

    frame No. GS110X-100825
    engine No. GS110X-142052
    carburetor I.D.No. 49320

    Engine and frame numbers are consistent by a plate of factory on head pipe.
    Cam height was measured during engine overhaul.Its value is matched to the specifications of E27.

    I wonder why SZX of South Africa is with a pipe swingarm. Does anyone know about it?

    Cheers,
    Takahiro
    Hello Takahiro,

    Production Racing series for motorcycles in the late 1970's and early 1980's were based on stock road models and very few modifications were allowed. This was a major reason Production Racing was popular because people got to see bikes racing that were based on what was for sale in a Dealers showroom. Testing of the SXZ Katana for Production Racing revealed that the 1100 Katana produced flex in the O.E.M. alloy swing arm. I have spoken with Mick Hone, Ken McIntosh and Clive Strugnell, (sadly, Clive passed away in Feb 2017) regarding this subject and each of the gentlemen have confirmed this was an issue when racing the standard production 1100 Katana swingarm. Of course Ken was able to rectify this problem with his excellent McIntosh swingarm designed for the Katana however, the rules of the time didn't allow Ken's swingarm to be fitted to the N.Z. SXZ 1100 Katana for racing. Swingarm modifications were allowed in later years.

    The Manager of the South African Suzuki Production Race Team became aware of the testing and issue with the factory alloy swingarm flexing under race conditions and was able to convince Suzuki Japan to fit chromemoly (light weight and stronger compared to standard steel swingarm) swingarms based on the pipe swingarm design fitted to the Suzuki GS1000S. The 25 SXZ 1100 Katana shipped to South Africa were supplied from Suzuki Japan with the pipe style swingarm, these swingarms were much stiffer than the OEM aluminium swingarm and improved the handling of the Katana in Production Races. The chromemoly pipe swingarm on the S.A. SXZ Katana were deemed to be "Standard Factory Swingarm" as they were supplied with the chromemoly swingarm ex-factory and allowed to race with the superior swingarm fitted.

    I hope this information is helpful to you Takahiro and gives you some help discovering the history of your SXZ Katana.

    Cheers,
    Glen.
    Last edited by Shin-Ken 1074; 18-10-18 at 06:55 AM.
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  2. #12
    Senior Member VIC
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    Hi Takahiro,
    Welcome to the Kat forum. Your story of your SXZ is fascinating, and your written English is very good. I was just in Tokyo about a week ago, crazy busy place.

    I have an Australian wire wheel Kat, frame number GS110X- 100494, so pretty close to your frame number although all the way out here in Australia.

    SZ Kat.jpg

    Cheers
    Rob

  3. #13
    Moderator QLD Shin-Ken 1074's Avatar
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    Quote Originally Posted by GSX1100SXZ.JP View Post
    Hello patrick,

    thank you for welcoming me and a picture.
    I am also very interested in SXZ story.

    frame No. GS110X-100825
    engine No. GS110X-142052
    carburetor I.D.No. 49320

    Engine and frame numbers are consistent by a plate of factory on head pipe.
    Cam height was measured during engine overhaul.Its value is matched to the specifications of E27.

    I wonder why SZX of South Africa is with a pipe swingarm. Does anyone know about it?

    Cheers,
    Takahiro
    Hello Takahiro,

    Thank you for supplying the frame and engine number of your Kat, they are very interesting and could be helpful in tracing the origin of your Katana.

    Your frame number 100825 is an 1981 W.W. (Wire Wheel) 1100 and I would place it's build between 6/81 and 8/81, the V.I.N. plate if fitted may show a date?

    My W.W. SXZ I have owned for 32 years is a 1982 build with a frame number GS110X 101226. I have attached an image of my SXZ fitted with stock parts. I have swapped some parts in the last few years however, I have kept all the O.E.M. parts so it can be returned to original specification.

    My 1100 SZ Kat.jpg


    I have been told by S.A. SXZ owners their frame did not have a V.I.N. plate attached to the steering head, the frame number was stamped in the usual place but no plate.

    Are you saying your Katana has a plate attached to the steering head?

    If there is a plate the text will confirm which country your Kat was originally built for.

    If there is a date stamped like this:

    8/81

    and if the letters "ADR" are stamped on the plate it is an Australian market delivered Katana. If there is no month/year stamp and "ADR" is not stamped then it is not an Australian delivered Katana and we need to look elsewhere, most likely N.Z. Could you please tell me what is written on the plate or post a photo of the plate? The plate will confirm the original country your Kat was made for.

    Cheers,
    Glen.
    Last edited by Shin-Ken 1074; 16-10-18 at 09:20 AM.
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  4. #14
    Quote Originally Posted by Shin-Ken 1074 View Post
    Hello Takahiro,

    Thank you for supplying the frame and engine number of your Kat, they are very interesting and could be helpful in tracing the origin of your Katana.

    Your frame number 100825 is an 1981 W.W. (Wire Wheel) 1100 and I would place it's build between 6/81 and 8/81, the V.I.N. plate if fitted may show a date?

    My W.W. SXZ I have owned for 32 years is a 1982 build with a frame number GS110X 101226. I have attached an image of my SXZ fitted with stock parts. I have swapped some parts in the last few years however, I have kept all the O.E.M. parts so it can be returned to original specification.

    My 1100 SZ Kat.jpg


    I have been told by S.A. SXZ owners their frame did not have a V.I.N. plate attached to the steering head, the frame number was stamped in the usual place but no plate.

    Are you saying your Katana has a plate attached to the steering head?

    If there is a plate the text will confirm which country your Kat was originally built for.

    If there is a date stamped like this:

    8/81

    and if the letters "ADR" are stamped on the plate it is an Australian market delivered Katana. If there is no month/year stamp and "ADR" is not stamped then it is not an Australian delivered Katana and we need to look elsewhere, most likely N.Z. Could you please tell me what is written on the plate or post a photo of the plate? The plate will confirm the original country your Kat was made for.

    Cheers,
    Glen.
    Hi Takahiro,

    I'm lucky enough to own a NZ E27 SXZ

    Kat Jan 18 by Daz Za

    The chrome-moly swing arm was reputed to be stiffer than the standard alloy swing arm. None of the NZ SXZ had the steel arm. The original rear Takasago rim fitted to mine was a 2.75 x 18, I have the original wheels, but for general riding the bike runs a 2.50 x 18 front and 3.00 x 18 rear.

    Darryl
    Darryl in E27-land


  5. #15
    Moderator QLD Shin-Ken 1074's Avatar
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    Hi Darryl, thanks for the info on the rear 2.75, what size was the original 19" front rim?

    Cheers,
    Glen.
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  6. #16
    I'll have a look tonight Glen. It was slightly wider than the alloy from memory.
    Darryl in E27-land


  7. #17
    Moderator QLD Shin-Ken 1074's Avatar
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    Quote Originally Posted by Kiwialfa View Post
    I'll have a look tonight Glen. It was slightly wider than the alloy from memory.
    Thanks mate, I was wondering if they were 2.15 x 19 but we'll know tonight.

    Cheers.
    Badgezz, we don need nor stinkin' badgezz!

  8. #18
    Hello Glen,

    your information is very helpful for me.
    The mystery of the swing arm has been elucidated.
    I thought for a long time that the pipe swing arm looks bad. But I don't think so any more.

    My SXZ don't have a V.I.N. plate attached to the steering head. Only the frame and engine number are stamped a plate on the steering head.

    10160001.JPG

    Thank you for lots of information!
    Takahiro

  9. #19
    Moderator QLD Shin-Ken 1074's Avatar
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    Hello Takahiro,

    Thank you for posting the 3 very good photos of your SXZ including the V.I.N. decal. A couple of details in the photos help to confirm this is not an Australian market Kat. Australian SXZ Katana were not fitted with the larger 33mm exhaust outlet in the centre of the muffler, the 33mm exhaust outlet mufflers were made for the N.Z. and S.A. Kats only. Australian SXZ Kats did not have the anti-dive decal on the forks. And the most telling of course is the V.I.N. tag. Australian SXZ V.I.N. tags are an aluminium plate held on with two brass rivets.

    North America did not receive the SXZ 1100 Katana so that market can be discounted.

    Europe and Asia did not receive the SXZ Katana.

    The only two markets left for your SXZ are N.Z. and South Africa.

    Your V.I.N. is a number allocated to a Katana frame in 1981 so we can be sure your SXZ is not a later model Katana made into an SXZ.

    If the information supplied from S.A. is correct that the S.A. SXZ did not have a V.I.N. tag (and your does) it would appear the frame is not a South African frame. We would need to have confirmation from S.A. about the no tag issue.

    So, at this stage a good bet would be this could be an N.Z. frame. Luck is on our side, our good mate Darryl who owns a genuine N.Z. E27 SXZ may be able to help identify your frame when he looks at the image of your V.I.N. decal to see if it is the type supplied with N.Z. E27 SXZ Katana.

    Next step is news from Darryl. I'll send him a P.M. asking about the V.I.N. decal.

    Cheers,
    Glen.
    Last edited by Shin-Ken 1074; 16-10-18 at 07:41 PM.
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  10. #20
    Hello Darryl,

    It is the only one Katana that won the championship with Dave Hiscock and Neville Hiscock. I think that E27 is a brilliant legend.

    10160003.JPG

    Cheers,
    Takahiro

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