The title about sums it up, was having a quick check of the airfilter earlier and on the airbox top (snorkel?) there are 2 vents.

One of these had a chunk of regular foam in blocking off one side. Is this a mod/normal or has the foam come from somewhere else in that region??

I am puzzled as on the other off-road bikes I have had I have always strived to get lots of air in quickly and this reduces the intake by 50%

I looked in the manual, but there doesn't seem to be anything like it there.

Any light to shed you guys??

Ged

i havnt got a clue what you mean

the airbox lid has no foam on or in it

the mudguard has a small piece stuck to it, perhaps its from that

Sounds like a garden shed mod to me

It looks like it may have come from elsewhere. I will remove it immediately