Engine 'tripping up'

[illusion]

Hi,

When riding my bike and coming to a stop, say at lights or wherever, and the bike is idling, it sometimes makes a kind of 'tripping' noise, and the revs slow down briefly for about a second or 2 seconds, and then comes back to its normal idling revs (about 1700RPM). It doesn't always do this, and isnt really causing any problems but I am curious as to why it is doing it. It's a GS500. It started doing it since I changed the oil and oil filter (I used Castrol GPS), and also recnetly I have slightly adjusted the idle speed a bit higher. Any ideas?

Cheers, Dan

[DM]

You mean when the engine idle is interrupted from its 'dadadadadada' with a 'dat-dat-dat-dat' and a slight rpm dip before resuming as normal? Hmmm, my 2-stroke has always done that, not sure if it's a problem for a 4-stroke. Must say I'm also curious as to its cause.

[illusion]

Yep, just like you described. It's not causing any problems really, its not cutting out or anything, just curious why its doing it. Also I get a clicking sound sometimes.

[Thet2]

could be a combination of things really, crap petrol being one of them, air filter dirty and even possibly u have an air leak somewhere (check the carb manifold.