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Thread: KX250 rebuild - after all I've ridden it half a dozen times and it's worn out

  1. #166
    Join Date
    11th January 2010 - 04:48
    Bike
    KTM 350 SX-F
    Location
    Jafa Land
    Posts
    1,134
    Purrrs like a kitten... albeit a kitten that smokes 40 Malboro Reds a day, but still...

    Awesome!

  2. #167
    Join Date
    19th May 2009 - 20:12
    Bike
    1999 yz250
    Location
    auckland
    Posts
    18
    good work looks mint once you get it all sorted and get the hang of it take the flywheel weight off it will be a differnt bike cheers

  3. #168
    Join Date
    22nd July 2004 - 12:00
    Bike
    Honda XR250,VTR1000F,FXR-bucket
    Location
    Auckland
    Posts
    281
    Arron's KX250 had its first ride at the Hamilton Honda kids campout this weekend

    It dosnt look all clean and shiny anymore !
    (I forgot to take a photo)

    I took it for a blast and it goes Really well (and still running well after 3 days !....so he must have done something right)

    Cheers

  4. #169
    Join Date
    10th April 2009 - 19:56
    Bike
    Rmz450
    Location
    temuka
    Posts
    158
    awesome stuff. nice work,looks and sounds sweet

  5. #170
    Join Date
    18th June 2006 - 00:14
    Bike
    Katana 1135, RG500, GSXR1100, KX250
    Location
    Auckland
    Posts
    890
    Thanks Grant .... yes the KX was finished for the weekend and did not miss a beat.

    The magneto thing that stopped the bike had a broken wire and the one comming from the USA did not get here in time... What does one do? Ahhh yes phone mate who works at an eletronic company and he used a microscope to join up the wires with a jumper. A job well done and was free.

    Before repair.

    Photobucket

    After repair.

    Photobucket

    And for FREE... dam great.

    Bolted it on and bingo... Huston we have ignition!

    Bike all finished.. except the dam thing will not idle... goes like a rocket but no idle... and yes I tried the idle screw but it did nothing.. any ideas?

    Photobucket

    ready to go for the weekend.

    Photobucket

    Used as it should be... the kick starter did not miss once... WOW pleased about that. All in all there were two bolts that needed tightening other wise it ran like a dream. Now to get it to idle... I did not have time to look at jetting so thats the next job!

    Got to say... I was grinning from ear to ear.... and as expected had a beer or two after the day. Oh and to add the women was happy to when I let her out of the campervan after my days riding to make my dinner.... I think she needed a piss. Me I would have used the sink.!!!

    Next update will be ... sorting out the jetting to make it idle.
    One for the road...
    Kat1230 (81), GSXR1100 (86), RG500 (86)
    The 80`s - Back in the days when men looked like women, women dressed like whores and the music F@#KING ROCKED!

  6. #171
    Join Date
    23rd February 2007 - 08:47
    Bike
    Blandit 1200, DRZ250 K, Beta xtrainer
    Location
    CHCH
    Posts
    2,129
    Well done that man. Now hurry up and start your next project............!

  7. #172
    Join Date
    11th January 2010 - 04:48
    Bike
    KTM 350 SX-F
    Location
    Jafa Land
    Posts
    1,134
    There is a train of thought that a properly tuned MX 2T just won't idle, as the requirements for a good idle are vastly different to the set up required for peak performance. Sounds like bollocks to me, but certainly with the dicking about I did (albeit very uneducated dicking about) with the carb on my RM, I never got that bastard to idle. Went like a stabbed rat though...

  8. #173
    Join Date
    9th July 2004 - 12:34
    Bike
    KTM300EXC
    Location
    Porirua
    Posts
    493
    if you have run out of idle adjustment nest thing after a rebuild like that I would look at is the throttle cable adjustment, then the pilot jet for any blockages or perhaps an odd size (assume not is it was not a problem before the build?) and also check float bowl height. Cool build though!

  9. #174
    Join Date
    18th June 2006 - 00:14
    Bike
    Katana 1135, RG500, GSXR1100, KX250
    Location
    Auckland
    Posts
    890
    Thanks for all the advice...NOT!!!.....!

    haaa well well well..... won't idle... idle screw does FA.... Jetting must be FUCKED! yea yea yea....

    Internet... google search "KX not idle" down load 1000 post and only print 900 of them. I've read so much shit on jetting that I'm looking at the womens box with new thoughts.... what would a little jetting do to that!

    My race bike... that road not dirt version has a oxygen exhaust sensor fitted so I can mointer the fuel / air mixture so I have a weeee bit of experance in the jetting game. So there are no plans to let the KX Beat me.

    So with my new found knoladge off I go HUNTING.... won't idle my ass.... OK lets open her up.... spread it wide .

    Photobucket

    Carb removed and time to start hunting... and yes before you start... I did strip, clean and service the carb!

    Notice the air screw.... have a close look!!! yep looks fine... next is the slide

    Photobucket

    looks fine to me.... now put them togeather and see why the little fucker wont lift the slide...

    Photobucket
    WTF

    Photobucket
    WTF WTF

    Photobucket
    WTF WTF WTF ...... WTF yes I did not noice this. WTF WTF WTF... shame.

    The idle screw is not doing shit in that carb... so before I start changing the jetting I think I will borrow / rob / steal / confiscated / scab / rent / highjack / win or dam it buy a new slide. All gifts thankfully recieved..... Oh and I take PayPal.
    One for the road...
    Kat1230 (81), GSXR1100 (86), RG500 (86)
    The 80`s - Back in the days when men looked like women, women dressed like whores and the music F@#KING ROCKED!

  10. #175
    Join Date
    18th June 2006 - 00:14
    Bike
    Katana 1135, RG500, GSXR1100, KX250
    Location
    Auckland
    Posts
    890
    Thought I would add.... while the engine was warm I drained the oil.... after its first run and a rebuild.
    So drain oil... pour it in to a measuring jug. Then grab manual and look to see how much oil the engine holds knowing I had put the right amount in. YOu might ask.... you only just put oil in the dam thing... surley you would remember how much went in... answer NO. and NO idea why

    Jug = 850ml
    Book = 850ml

    Now that tells me its used no oil... leaked no coolent and everything is sweet as.
    One for the road...
    Kat1230 (81), GSXR1100 (86), RG500 (86)
    The 80`s - Back in the days when men looked like women, women dressed like whores and the music F@#KING ROCKED!

  11. #176
    Join Date
    4th May 2006 - 22:17
    Bike
    1987 GPX 250
    Location
    New Zealand
    Posts
    3,445
    Quote Originally Posted by Arronduke View Post
    Thought I would add.... while the engine was warm I drained the oil.... after its first run and a rebuild.
    So drain oil... pour it in to a measuring jug. Then grab manual and look to see how much oil the engine holds knowing I had put the right amount in. YOu might ask.... you only just put oil in the dam thing... surley you would remember how much went in... answer NO. and NO idea why

    Jug = 850ml
    Book = 850ml

    Now that tells me its used no oil... leaked no coolent and everything is sweet as.
    You gotta be happy with that!

    You better have another project lined up for us to read/watch!

  12. #177
    Join Date
    18th June 2006 - 00:14
    Bike
    Katana 1135, RG500, GSXR1100, KX250
    Location
    Auckland
    Posts
    890
    OK... some one find me a 92 KX250 carb secondhand please....

    $230 for a new carb slide... so I can get it to idle. I would rather pay....hmmmm thinking thinking $60 .... sounds about right for an old carb?

    So while I am waiting for the slide to turn up in the mail.... (one must hope!) (like waitiing for my wife to grow tits.... ant going to happen!)


    Well to make myself feel better i thought I need to add to my OLD 90's stereo in my garage.
    Shitty old Pioneer 5.1 thing... 165 RMS clamied... anyway owned this thing since I was 22. Thats exsactly 20 years and it has caused me much greif with too loud music and f-ing off everyone living near while flatting.

    Speakers are in the back of my grarage in the corners... front door open.

    Put it this way (2 months ago)... my neighbour was drinking piss in my garage and then went home.... 1-200 m away. I live on a lifestsyle block...15acres. And he came BACK.... like Arnold movies... I'll be BACK!.. Yepp he came back... and tried to strangle me..." turm it down!" haaaa no shit ..my mate was laughing so hard he dropped his beer!

    Anyway... after ring up in the morning and appoligising again... all is good. So back to shiity AMP... Me think I want records... so look on line and find out it ant that easy... and turn tables are an art form.. cool. Then realise my shitter AMP can play a turn table...Phono input...it has one... have a look at your amp as new amps do not have a phono input. A recond signal is very low and needs a special circuit to amplify it... plug a turn table in to normal CD input and the volume will be very low! and sound shit.

    A so call friend... tells me that my stereo system in my garage won't notice the improved quality of a record becasue its built to go loud and not sound good.. now that f$cked me off after spending $200 notes on a swis made ..old ... turn table...CS-503 mk1.... I pick this up tomorrow...

    Yes music lession nearly over!

    So new record player purchased ... and tomorrow...and I am thinking sound shit.... I need a new AMP.

    F it.... on trade me... I must have new AMP and it must be mean.. and in the period of my garage... no bells and whisles... I want the thing to just make music.
    Enter.... Yamaha AMP and Pre AMP.... yep that what I want... reviews are unbeleivable.... two days thinking about how I can have them and still be married...

    Yamaha
    MX-1000 AMP
    CX-1000 Pre Amp

    Ok means FA........ made in the 80's F off I hear you say.... but NO!

    weight... around 25kg
    260 RMS .... thats just plain mean.... haa makes me laugh just saying that number.

    YEP ... it is ... WOW and more wow and loud and clear..... un real sound and soo loud... the sound goes through you... weird feeeling.

    Photobucket

    might add tomorrow what I think of the turn table tomorrow after I report the tyre pressure on the KX... I am sure everyone would like to know how much the tyre pressure has dropped since I got the fitted!!!! stay tuned....
    One for the road...
    Kat1230 (81), GSXR1100 (86), RG500 (86)
    The 80`s - Back in the days when men looked like women, women dressed like whores and the music F@#KING ROCKED!

  13. #178
    Join Date
    22nd July 2004 - 12:00
    Bike
    Honda XR250,VTR1000F,FXR-bucket
    Location
    Auckland
    Posts
    281
    Wow Arron you can waffle on ... and on

    I am glad I am not your Neigbour !

    Mind you I was your flatmate for a while and that was a laugh

  14. #179
    Join Date
    20th June 2011 - 20:27
    Bike
    Dog Rooter, 1290 SDR
    Location
    Marton
    Posts
    9,851
    Contact this dude, http://www.smebike.com/index.php?rou...formation_id=4

    Dont just go by whats on his website, he has a huge amount of old carb gear. Boxes and boxes of it and he doesnt charge the earth for it.
    Hes just up in Whitford.
    Quote Originally Posted by Katman View Post
    but once again you proved me wrong.
    Quote Originally Posted by cassina View Post
    I was hit by one such driver while remaining in the view of their mirror.

  15. #180
    Join Date
    18th June 2006 - 00:14
    Bike
    Katana 1135, RG500, GSXR1100, KX250
    Location
    Auckland
    Posts
    890
    Thanks for the link.

    I have contacted them and will see what comes back.
    One for the road...
    Kat1230 (81), GSXR1100 (86), RG500 (86)
    The 80`s - Back in the days when men looked like women, women dressed like whores and the music F@#KING ROCKED!

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