Noisy WR450F

5 replies to this topic
  • rob67

Posted February 08, 2007 - 05:07 PM


Hey guys I am new to this sight I own an 03WR450F and I was just wondering if these motors are all noisey valve adjustment is ok seems to go away after a while is that piston slap I am hearing.

  • oldbones

Posted February 08, 2007 - 08:55 PM


Nope, it's the chain slapping the chain guide against the top of the swingarm (right behind the countershaft sprocket).

  • davo ttt

Posted February 09, 2007 - 05:06 AM


they are noisy thats just how they are lots of clunking and clanging:ride:

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  • rob67

Posted February 18, 2007 - 09:48 PM


thanks for the information how often should the chain be replaced or is it not necisary

  • davo ttt

Posted February 18, 2007 - 09:55 PM


you wont have to change it for a long time if its new ,kep an eye on the sprockets for wear your owners manual will have pics suggesting when to change

  • oldbones

Posted February 20, 2007 - 09:24 PM


On the earlier WR's, we loosened the top half of the chain slider and inserted a piece of rubber under it (padding) then tightened it back down. This took care of the noise, and prevented the chain slider from wearing into the swingarm.


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