Engine Ticks While Idling

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Just today I noticed a new sound coming from my GZ; a ticking. This only seemed to occur while I was waiting at a stoplight. Either that, or it continued while I was riding but I just couldn't hear it over the engine noise.

Obviously, I can't describe it in any more detail, since it was just a clicking sound, and I'm not looking for a full diagnosis of the problem. I can be realistic. What I am wondering is if anyone thinks this could be serious enough to stop by the mechanic sometime in the near future. Is this normal? I would think not, since I just noticed it; but perhaps I just never paid that close attention to my engine nuances.

Sorry, but it seems like I post new topics here more than I contribute. I appreciate the help from the "experts" though; at least, have more expertise than me! It can be very fun/scary/frustrating being a new rider and not having that solid knowledge base that more seasoned riders have.