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rob67

Noisy WR450F

6 posts in this topic

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.

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

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

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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

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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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