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Thread: Mechanical help with conrod play

  1. #16
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    2nd March 2009 - 21:07
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    gasgas
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    auckland
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    yea the bike went mint all last weekend was going great on sunday then was just riding along when it died like it was out of gas then when it made a crunch when i went to kickstart it. i put it on the trailer striped the head and found it to ook fine other than 2 slight marks down by the conrod any ideas ??

  2. #17
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    27th April 2008 - 17:48
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    01 R6, 99 KX125
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    Quote Originally Posted by Phil_86 View Post
    manukau city how do you tell what has gone in the bottom end should the crankshaft have play left and right.
    Yes there should be a little bit of play left to right. If you put the crankshaft to the top & pull on it there should be no upwards play.

    Problem described could be many causes, primary drive gears, clutch cogs, some gearing gone & jammed, kickstart mechanism broken.

    Until seeing the bike & taking off the clutch cover etc you wouldn't know.

    Have you dropped the oil & if so were there any chunks or shavings in the oil?

  3. #18
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    2nd March 2009 - 21:07
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    algood when can i bring it in?? il be keen to pay in cash? what is your hourly rate?

  4. #19
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    2nd August 2006 - 22:17
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    kinda tending to think could be kick start return spring
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  5. #20
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    2nd March 2009 - 21:07
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    the only thing that happened was the silencer bit of the exhaust blew out. and some of the baffel had come out.

  6. #21
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    21st May 2007 - 18:03
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    Quote Originally Posted by Phil_86 View Post
    manukau city how do you tell what has gone in the bottom end should the crankshaft have play left and right.
    The workshop manual I gave you will let you know how much play it should have. And it will give you all specs to measure for the bike.

    Sounds like the kickstart mechanism to me. You can follow that manual to get to the kickstart or see if a mechanic off here will do it for you.

  7. #22
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    2nd March 2009 - 21:07
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    trust me my dad is an engineer we heard a crunch insid of the engine. the kickstart would get to a point then crunch it sounded like the piston was hitting something?

  8. #23
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    27th April 2008 - 17:48
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    Quote Originally Posted by barty5 View Post
    kinda tending to think could be kick start return spring
    i think its something to do with the kickstart as well. either the spring or the mechanism itself.

  9. #24
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    27th April 2008 - 17:48
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    Quote Originally Posted by Phil_86 View Post
    trust me my dad is an engineer we heard a crunch insid of the engine. the kickstart would get to a point then crunch it sounded like the piston was hitting something?
    if the piston had hit something there would be damage to both the piston & bore. pistons are aluminium & the bore has a nickel plated sleeve which is very soft hitting the slightest thing will cause visible damage.

  10. #25
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    5th March 2007 - 20:28
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    07 KDX 200 (Miss Piggy)
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    Welcome to KB phil86, I was the guy on the KDX who stopped to see if you needed a hand and went to get you a tow (although your mate beat me to it.) Didn't sound nice when you demonstrated the 'noise'.. Trust the guys on here offering help, they're cool....
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  11. #26
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    2nd March 2009 - 21:07
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    there is 2 marks at the bottom of the casing by the conrod nothing on the bore or the piston like it went to far down ?

  12. #27
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    2nd March 2009 - 21:07
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    im not trying to be a dick about it just want to find a mechanic who will work on it i have it completley pulled down piston out but dont want to go near the bottom end lol . leave that to the guys who know what there doing .thanks foor gwetting me a tow man.

  13. #28
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    27th April 2008 - 17:48
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    Quote Originally Posted by Phil_86 View Post
    there is 2 marks at the bottom of the casing by the conrod nothing on the bore or the piston like it went to far down ?
    Unless the piston is seriously the wrong one it should not be able to hit the bottom of the crank. Without hearing the noise and seeing the bike it is hard to think what it could be. I have fixed a bike that was just the kickstart mechanism even though the owner thought it was the crank bearings...

    Different types of crunches and knocks can represent different things going wrong.

    Am happy to have a quick look at the bike but I'm all the way over on the shore.

  14. #29
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    2nd August 2006 - 22:17
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    Quote Originally Posted by Phil_86 View Post
    algood when can i bring it in?? il be keen to pay in cash? what is your hourly rate?
    normally $70 plus when workin on cars but as cash could work somthing out bring it in when ever you want.

    13 mahuru st newmarket im there from 7:30 till 6pm later most night except tuesdays (have to pick up my son on way home tuesdays).
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  15. #30
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    2nd March 2009 - 21:07
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    ok ill bring it in tomorrow if thats cool should i bring all the bits bore and all?? i am workin in new market could i leave a trailer at your work till 5 pm and pick it up when i finish?

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