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Hey all! Took my 08 450xc in to my local shop and had valves adjusted. Got it back and they were ticking pretty good. I took it back in and mechanic said they were within tolerance and that these quads are just noisy. Is this true? I don't recall it being this noisy before. Going to check them myself but figured I'd ask in they are just naturally a noisy top end. This quad is relatively new to me but I do know what valves that are out of adjustment sound like.
 

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The RFS engines in the XC quads are noisy in general. If your valves were tight before then you might get some additional ticking, but it shouldn't be excessive. Hard to give a definite answer on this without hearing it run in person.
 
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