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Thread: ESE's works engine tuner

  1. #33196
    Join Date
    20th January 2010 - 14:41
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    husaberg
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    Quote Originally Posted by peewee View Post
    i thought i read the yzm 500 was only used two years on works bikes. sounds like only eight were ever made

    https://motocrossactionmag.com/amp/1...inum-was-cool/
    of that model maybe but the 1986 YZ500 OW66 was also called a YZM as were heaps of other bikes of multiple cc's and years.
    Like the 1983 YZM500 OW50


    I found this 1983.
    Satoru Shoji's '83 All Japan Championship winning works bike
    It might be an interest to Frits and Jan
    Yamaha rotary disc valve 125. OW67 or 1983 yzm125
    I have not seen this one mentioned previously.
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    it also race in the USA and by the look of it Europe



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

  2. #33197
    Join Date
    19th October 2014 - 17:49
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    whatever I can get running - dirt/track/
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    San Francisco
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    A similar rotary valve CZ from 1983, it must have been all the rage.
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  3. #33198
    Join Date
    12th March 2010 - 16:56
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    TT500 F9 Kawasaki EFI
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    Hamilton New Zealand
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    Haha, amateurs.

  4. #33199
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    20th January 2010 - 14:41
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    husaberg
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    Quote Originally Posted by Michael Moore View Post
    A similar rotary valve CZ from 1983, it must have been all the rage.
    Honda

    did them as well as Cagiva.https://www.kiwibiker.co.nz/forums/a...p?albumid=5103
    But i had never seen a pic of the Yamaha single only a drawing of the V4



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

  5. #33200
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    22nd November 2013 - 16:32
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    STRIKE trike & KTM300 EXC TPI
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    Perth, Western Australia
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    Quote Originally Posted by husaberg View Post
    The Boeing 787 has about 500 kilometers of wiring.
    Good point Hooser, they('ll) both fly...
    “The only reason for time is so that everything doesn’t happen at once”

  6. #33201
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    20th April 2011 - 08:45
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    Quote Originally Posted by husaberg View Post
    The Boeing 787 has about 500 kilometers of wiring.
    Whatever makes you happy. Me, I don't particularly care for this kind of electrickery. It's not KISS.
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  7. #33202
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    28th August 2015 - 00:01
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    1975 Hodaka Wombat
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    Eugene, Oregon, USA
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    If you think that's bad, take a look at an all electric drive model boat. Some of these wires carry 500+ amps while accelerating to 285+ KPH.

    Lohring Miller
    PS Some of the wires goe to test equipment.

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  8. #33203
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    7th October 2015 - 07:49
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    honda ns 400
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    Lithuania
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    282
    This man looks happier
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  9. #33204
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    7th October 2015 - 07:49
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    And really happy guys. Riga 23S 125cc two cylinder rotary after more than 30 years.
    https://www.youtube.com/watch?v=VP1KY1mBlDs
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  10. #33205
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    20th January 2010 - 14:41
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    Quote Originally Posted by katinas View Post
    And really happy guys. Riga 23S 125cc two cylinder rotary after more than 30 years.
    https://www.youtube.com/watch?v=VP1KY1mBlDs
    More a can of angry wasps getting shaken up rather than ripping calico.



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

  11. #33206
    Join Date
    12th March 2010 - 16:56
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    TT500 F9 Kawasaki EFI
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    Hamilton New Zealand
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    Quote Originally Posted by Peter1962 View Post
    Neil, is this a TPI version 2 prototype, with 4 injectors ?

    Watch out for Austrian 'observators' in you neighborhood

    I held off, having offered it to TM, thought they might be intetested, put the middle finger up KTM, but in the end no.
    So bugger it, on the internet, free to a good home, whom ever wants it.
    Im down to a single page of 'things to finish' then I'm off riding it, thats me being super optimistic.
    I'm real keen to get into my 175 version but far too many things to finish off before that.
    That would be the twin exhaust, open all hours crank case / rotary valve, four injector, balance shaft, special piston, pull start engine. YZ 250 X gearbox.

    Time and money.

    Allegedly I'm still owed a TM 125 TPI, January now. I'll have that engine out quick smart and replace it with what TM should have done.

  12. #33207
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    1st May 2016 - 13:54
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    Vintage 2T
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    Brisbane
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    269
    You can lead a horse to water.....

    (but some won't drink until they're drowning ... and then it's usually far too late!)

    Great work Neil..

    Cheers, Daryl.

  13. #33208
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    3rd May 2017 - 04:03
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    1997 Yamaha rd 350
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    Russia
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    120

    Throttle bodies

    My list of 28-44mm throttle bodies and TPS to use for fuel injection. May be useful for somebody





  14. #33209
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    18th May 2007 - 20:23
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    RG50 and 76 Suzuki GP125 Buckets
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    Auckland
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    .
    That's great, very helpful. Thanks.

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