What can cause this noise???

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AAK

Race Dog
Joined
Feb 4, 2010
Messages
554
Reaction score
26
Location
Fraserburg, Northern Cape
Bike
KTM 990 Adventure
I have this bubbling/burping noise on my 990. Say I ride the bike at 140kmph for 20km, I pull over and switch it of. Then there is this burping noise for about 2-3  seconds. I thought it was air lock in cooling system so I checked, front wheel in air etc, but nothing wrong there.

Only thing I can think is vacuum of some sort in fuel tank?? But I don't have any power loss on bike, so no fuel starvation.

Or can it be fuel pump/ filters?
 
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