Houling sound in my YZ450F -08

7 replies to this topic
  • stefanv

Posted November 23, 2008 - 12:45 PM



Yesterday i heard a strange noise from the engine. It doesn´t change with the load or with clutch on/off. it´s there all the time!
I know that the -08 has a tighter fit in the engine so maybe it sounds different to the -07.
Has anyone had problem with bearings going bad or something else?
My bike has only 15 h of running time and oil has been changed every 5 h.

Kind regards
Stefan from Sweden:banana:

  • DPW

Posted November 23, 2008 - 01:07 PM


Have you installed a new skid plate recently?

  • stefanv

Posted November 23, 2008 - 01:30 PM


You are so right. I installed a new skidplate "mod large" last week.
I will test next weekend.


  • gtxkid

Posted November 23, 2008 - 02:06 PM


when i installed my works connection skid plate it scared the shit out of me.
I then instaled the foam pad that come with it and it was quiet again

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  • JSanfilippo

Posted November 23, 2008 - 02:35 PM


HAHA the howling and clacking sounds from a skidplate installation get everybody. If you heard my WR at idle you'd think the engine was clapped out....until you roll on the throttle :bonk:

  • Drfletcherdc

Posted November 23, 2008 - 05:11 PM


You are so right. I installed a new skidplate "mod large" last week.
I will test next weekend.


Don't feel bad, I did the same thing. I had just changed the oil and installed a new WC skid plate and took it to the track. Freaked me out until the good folk here at TT gave me some guidance.

  • Slinkyman16

Posted November 24, 2008 - 02:35 PM


lol.. i think this has happand to everyone. scared the shit out of me the first time i ran my bike.. i was like owe no.. my new bike has valve issues already!

  • DPW

Posted November 24, 2008 - 06:14 PM


besides installing the foam pad you can also use some rubber washers between the frame and the plate on the bolts. I also cut some stripes out of an old tube and ran the strips between the frame and plate...helped.

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