crf150f bogging

[richd3000]

\r\n \r\n Put air box n stock filter back on. That\'s ur problem\r\n

[shawnmn]

\r\n \r\n no, the stator got fried. i installed a +1 sprocket in front and had to cut the sprocket cover to make it fit. so hot grease from the chain sprayed the wires to stator melted them and the stator was shorted of power and burned out. it looked pretty bad. so never cut the spocket guard on a crf 150 cause that will most likely happen.\r\n

[shawnmn]

my crf150f runs fine for a couple minutes then starts bogging out little by little. If I turn it off for about 5 minutes then try it again same thing, it will run fine for a couple minutes then bog out. tryed changing spark plug, and cleaned carb any ideas what could be wrong?i removed the airbox and installed a uni pop filter. Can that have something to do with it? Should those little foam pop filters be lubed?