This mod doesn't completely fix the problem but does indeed cut down the popping of the exhaust. Mine was so bad that every pop would send out 4 inches of fire which looks cool but not good for the engine or the police around you.

It was my mission to solve this problem as I didn't want to be getting into trouble with the police here in Taiwan. I think what causes the problem on our bikes is there is unwanted air entering the intake somewhere so I went about trying to find it, which I did and it was in plain sight.

On the side of each throttle body there is a rubber hose that comes from the breathing system on the bike, I guess its for emissions etc, so I took off the pipes and put small ball bearings in each side then slid the pipes back on..............hey presto no more flames and no more ear bursting pops.

Like I said this mod helps with popping but doesnt cure it, I still get the odd pop now and again but its alot quieter and less often.

I've included a picture and highlighted the pipe in green.7968525.jpg