Hi all,


I have recently purchased a 2004 FZ6 26k miles and although it's a fantastic bike have noticed a few things i'm hoping to get help with.


It's my first bike so don't have a baseline to compare it to beyond what i learned on (xj6) but the fuel economy seems shocking (~100/tank).
When warm, I've noticed a kind of wet warbling noise from the engine when engine braking, it's like a valve is open or something as the engine noise is a bit louder and clearer than normal. Then, when the throttle is re-engaged, it's like the window pops closed and there is actually a kind of sealing noise again like a window or valve has been sucked close (there's no sucking noise, almost like a pop like liquid has sealed the hole) and the engine sounds normal again.

Thanks,

Chris