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I have Vulcan 900 classic Lt 2011. I have just done 2000 miles on it and recently it developed sparking sound in front cylinder. I have changed spark plugs, checked plug lead and adjusted teppits but the trouble persist. The bike performance is otherwise fine. Can anybody help with diagnose.
 

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Thanks, it's not fuel injection click. The sound is heard even on idling and at infrequent intervals.
 

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Haven't had my Vulcan long but noticed a clicking above and behind the air box near the front cylinder. Did some research and found that it's a system the puts air into the exhaust to burn excess fuel (AIS). There is an actuator in the system that opens a valve and that is the clicking I was hearing. It is irregular and may be what you are hearing too. It's normal if so. Somebody may be able to add to this with more knowledge than I have.
 

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Haven't had my Vulcan long but noticed a clicking above and behind the air box near the front cylinder. Did some research and found that it's a system the puts air into the exhaust to burn excess fuel (AIS). There is an actuator in the system that opens a valve and that is the clicking I was hearing. It is irregular and may be what you are hearing too. It's normal if so. Somebody may be able to add to this with more knowledge than I have.
Ever since I installed my Air Intake System I hear alot more sounds. Injector ticking is more defined, as well as, what you mention above with the AIS. Under accelerating throttle seems I even hear the jugs sucking air like my compressor. I think the stock airbox used to insulate these sounds alot more.
 
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