I recently got a 2003 rm125. when I first got it, the bike was running. I went to ride it down to trails, and it was bogging when not in the high rpm range. Then the bike shut off, I started it again, rode for about 2 more minutes in powerband and it cut again. I couldn't get it running so I had to get a ride back to my house. I bought the actual spark plug (the 36.00 one). WhenI kickstart the bike, it sounds like no gas is getting in the engine. I opened and cleaned the carburetor, and checked to see if the float worked. I put the carb back together, and the float would not move. I don't know what the problem is, can anyone help?