Piston/ring replacement,died 2 hours in.

4 replies to this topic
  • Renotherhino

Posted October 01, 2016 - 11:17 AM


Yz450f 2009
Had a replacement of the head and rings... bike died mid ride. 2 hours total. and now it will start but i hear a noise. either a rattle or solid continuous tick like its draging rings or hitting a valve. i would like some input before i tear this bitch down and do it myself. Is it a common problem? i redid the cam chain to book specs and it was perfect till it died lol. let me know what you think.

  • Renotherhino

Posted October 01, 2016 - 11:19 AM


I assume if the rings blew off the bike wouldnt be able to start?
So maybe a valve. idk

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  • stevethe

Posted October 01, 2016 - 11:39 AM


Nothing common. Take it apart or pull the valve cover and look at the cams, check valve clearences and so forth.

  • Krannie McKranface

Posted October 01, 2016 - 01:41 PM


Sounds like you did not do the work

Take it back to the person who did

  • Renotherhino

Posted October 01, 2016 - 01:44 PM


Yea i figured. Ill do it myself then at least i know what is done. I appreciate the input just looking for a starting point as i am a 2t baby originally.

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