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Thread: The Sensible Twin

  1. #166
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    Quote Originally Posted by husaberg View Post
    Paint thinners aye i thought thy would turn into a gooey mess?
    Real rubber will. Pretty well all the carb rubbers are synthetic. Xylene is apparently one of the constituents.
    My theory is that the rubber loses the light end solvents over time.
    The good mixture is apparently Xylene and oil of wintergreen. Couldn't source wintergreen - methyl salicitate - in any quantity at an affordable price.
    There used to be a guy - ex teacher - in ChCh who sold chemicals and equipment to schools and the public. Dead now I believe.
    He was the only place to get a proper burette for measuring compression.

  2. #167
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    Quote Originally Posted by Grumph View Post
    Thanks for the offer. They're semi downdrafts like the Keihins I have. Between what I have here already in Amal, Dellorto and Keihin carbs - and what a mate has stashed away - I'm pretty sure I'll come up with something.
    clearly it's time to pull the throttle bodies off a wrecked Triumph 675 engine and go EFI!! The chaps at FE had EFI on a carbed Bonnie at one point.
    I thought elections were decided by angry posts on social media. - F5 Dave

  3. #168
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    Quote Originally Posted by Grumph View Post
    Real rubber will. Pretty well all the carb rubbers are synthetic. Xylene is apparently one of the constituents.
    My theory is that the rubber loses the light end solvents over time.
    The good mixture is apparently Xylene and oil of wintergreen. Couldn't source wintergreen - methyl salicitate - in any quantity at an affordable price.
    There used to be a guy - ex teacher - in ChCh who sold chemicals and equipment to schools and the public. Dead now I believe.
    He was the only place to get a proper burette for measuring compression.
    knowing that would have saved me a couple hundy if I had known it a couple months ago... inlet rubbers and carb to airbox rubbers ex DSS for the CB750... mine were off but like hell would they go on again.
    I thought elections were decided by angry posts on social media. - F5 Dave

  4. #169
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    20th January 2010 - 14:41
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    Quote Originally Posted by Grumph View Post
    Real rubber will. Pretty well all the carb rubbers are synthetic. Xylene is apparently one of the constituents.
    My theory is that the rubber loses the light end solvents over time.
    The good mixture is apparently Xylene and oil of wintergreen. Couldn't source wintergreen - methyl salicitate - in any quantity at an affordable price.
    There used to be a guy - ex teacher - in ChCh who sold chemicals and equipment to schools and the public. Dead now I believe.
    He was the only place to get a proper burette for measuring compression.
    I still have an old bottle of those tyre softeners they used to use on the karts (but never on proddy bikes). It always stunk of wintergreen.
    Chemists used to be a good source of chemicals especially if they were owned by people that were interested in Motorsports.
    Possible to get a lot of stuff now on the Net Trademe etc.
    That said i do know a guy who is an industrial chemist who sells out of trade Email me.
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  5. #170
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    Quote Originally Posted by HenryDorsetCase View Post
    clearly it's time to pull the throttle bodies off a wrecked Triumph 675 engine and go EFI!! The chaps at FE had EFI on a carbed Bonnie at one point.
    Nice in theory...but. Injection involves generating current which infers a working alternator. No thanks.
    It also involves putting a cam position sensor on. Again no thanks.
    I'm a great believer in the KISS principal for race bikes which only do short races...

    I wouldn't use a Triumph anyway. Probably find a complete setup off a late 300 twin. Yamaha or Kawasaki.
    I'll keep buying the lotto tickets.

  6. #171
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    or - https://www.mikunioz.com/shop/mikuni...v=8e3eb2c69a18.

    I've bought bits of rubber hose from Supercheap at all sorts of odd angles and used that for manifolds. Some radiator hoses have all sorts of useful angles and come in lots of sizes. Usefully supercheap nearby used to have bins of radiator hoses I could search through.

  7. #172
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    I bought a bottle of Oil of Wintergreen from www.lotusoils.co.nz - I used it to soften the airbox bellmouths on the GS1100. Considering they were rock hart before and only semi rock hard after I would call it successful .
    it's not a bad thing till you throw a KLR into the mix.
    those cheap ass bitches can do anything with ductape.
    (PostalDave on ADVrider)

  8. #173
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    25th March 2004 - 17:22
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    I've bought burette online from some supplier.
    Don't you look at my accountant.
    He's the only one I've got.

  9. #174
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    It's a runner. No exclaimation marks as it was but a short burst. By myself, used the drill on the crank,wound the idle up a tad and full choke on unmodified NSR carbs. Shot of Start Ya Bastard down the 'oles and it went.
    Couldn't run it for long as the carbs were leaking and I'd turned the fuel off. Couldn't try throttle as I had my hands full of drill...

    Set the carbs up off the bike and the leaks are around the float chamber seam. Old hard O rings. They're currently soaking in Xylene...Why not ?
    Eventually I'll probably have to buy a kit off Tyga but if this works....

    Next time it's two people. One on the drill and me on the throttle to find out how far out the jetting is. It's got a sharp bark...

  10. #175
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    Kewl stuff.
    Don't you look at my accountant.
    He's the only one I've got.

  11. #176
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    Quote Originally Posted by Grumph View Post
    It's a runner.
    ................

  12. #177
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    Thanks but it was always going to be, LOL - It's just been hard fitting it in around other (paying...) stuff.
    It's still going to be as and when i can fit it in, but as soon as I can get the tank back from the welder and finish things off so it's rideable, it'll be ridden.

    One thing I looked at today was that I think the last person to ride that chassis was probably Avalon...So it's set up for someone half my weight.
    Bit of suspension tweaking needed, LOL.

  13. #178
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    20th January 2010 - 14:41
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    Quote Originally Posted by Grumph View Post

    One thing I looked at today was that I think the last person to ride that chassis was probably Avalon...So it's set up for someone half my weight.
    Bit of suspension tweaking needed, LOL.
    I never realised you were going to race it Greg?

    Great stuff
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  14. #179
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    9th January 2005 - 22:12
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    Quote Originally Posted by Grumph View Post
    Thanks but it was always going to be, LOL - It's just been hard fitting it in around other (paying...) stuff.
    It's still going to be as and when i can fit it in, but as soon as I can get the tank back from the welder and finish things off so it's rideable, it'll be ridden.

    One thing I looked at today was that I think the last person to ride that chassis was probably Avalon...So it's set up for someone half my weight.
    Bit of suspension tweaking needed, LOL.
    I see from her facebook that she is racing MX in the off season. She's a cool chick and has inspired a couple of women I know to give motorbikes a go, which is cool as fuck. They arent racing... but theres time.
    I thought elections were decided by angry posts on social media. - F5 Dave

  15. #180
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    Quote Originally Posted by husaberg View Post
    I never realised you were going to race it Greg?

    Great stuff
    Never say never, LOL. But I do have to test it to sort the carburation.
    I try and ride everything that comes through the workshop.
    As it's set up now, I'd reckon to hit the bumpstops a lot on the "private test track"

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