A not very Happy RM125

[parraddict]

Hi Guys, i have a 1993 Rm125. At idle after warm up with the bike sitting there on the stand it will idle normal for about a minute then the idle speed will drop to the point were it will stall. Now this is were my problem starts, it is now harder to start when cold will start second kick but now will take about a dozen. When finally started i give the throttle a quick rev and the revs will stay high and slowly come back down to idle speed for about a minute then stall again. Can anybody help plz

 

[HobRoff]

Sounds like a dirty pilot circuit or maybe a sticky float and how fresh is the fuel? that's where I would start looking