jetting

[woodsracer91]

my rm85 has been fouling plugs everytime i start it when it is cold can someone plz tell m what is wrong with my bike?????

 

[cr25096er]

it sounds rich. how does it run when hot? id suspect the pilot jet to be too rich.

 

[hrc125rider]

yea it sounds like your bike was doing what my bike was doing.its running to rich.to fix it lean up the clip on the needle a little bit and if that doenst work drop the size on the main jet down one.