2015 YZ250F Rattle

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11/27/2017 10:27 AM

My YZ has developed a weird rattle/vibration sound. The bike has an FMF Powercore 4 muffler only. I don't know if the exhaust needs to be repacked of it is coming from somewhere else. If the bike is idling that's when you here the rattling noise. Once I bring the RPM's up the noise goes away. I can't really tell where its coming from and I don't know what sounds the muffler makes when it needs to be repacked. I checked all the motor mount bolts and exhaust bolts all are tight.

Also checked my sprocket bolts as well and those are tight. LOL


11/27/2017 11:41 AM

Sounds like timing chain needs tightening or replaced