I have recently bought our first trials bike (first ever motorbike come to that), a 03 scorpa 250 for myself and son to learn on, anyway I'm going to sound like a right knob but can anyone tell me if the air filter cover is solid as the one on our bike is'nt, when you take mudguard off you can see the foam filter held in place with a black plastic rectangle frame, somehow doesn't look right even with my limited experience? is some cover missing? if so can I get a replacement? looks like muck could get in easily,
many thanks