rattle

yb200

New Member
Mar 28, 2008
7,718
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South Dakota
when i start my bike up is has a little louder then normal rattle but it only lasts 2 to 3 seconds what could cause this
 
could have a little carbon stuck to the rings and then it blows it out. could be some piston slap too tho
 
Your muffler bearings are starting to go out. No really it could be anything that is just a little loose. Just give your bike a good go over.
 
its comming from the topend...buy why only 3 or so seconds.....and the compression was check about a month ago at 120 psi...ill check it again tomorrow and see what its at....
 
its more of a knock from the top end its last 3 seconds or less and some time doesnt do it at all...wierd.....still rips tho...who knows