ORIGINAL: razor6570
I agree get it to a pro shop. They will tear the top cam off and check the bearings. They have scentless oil that they will put on it if they cannot find anything wrong. Also check the screws in the cam and make sure one hasn't backed off and is rubbing something. Good luck in Alberta!
Thank yourazor, but there aren't any screws. The cam is on a shaft with spacersand clips on the ends.