hey guys. up until today i've been riding a cheap diamondback, but i recently picked up a nice true flatland bike from a guy. i got it all together and it's great and everything, but i think the nankai is having some problems. i can't get a hold of the guy right now, so i figured i'd ask here. i don't really know exactly how a freecoaster is supposed to work, but it just doesn't seem to be working right. firstly, it makes a clicking sound whenever i'm coasting forwards (not a regular click, it seems like a bad click if i know anything), but more importantly, the cranks move backwards occasionally when i go backwards. it happens more when i engage it forwards and then stop and try to go backwards. any other time it works but i just don't think it's supposed to do that. it also doesn't seem to be spinning as much as it should, either. i think it might need some grease but i have no idea where to start. i don't know anything about freecoasters really, so any help on how i might be able to fix my problem would be great.thanks,john