[bran4403]

just picked up a 04 crf 100 for my daughter, bike has fmf pipe with stock jetting , hard to start and keep running, any ideas on jetting???

 

[firepower354]

See Powroll site for good jetting info.

 

[XRDAD]

The stock slow jet is a 35, and the stock main jet is probably a 95. Go up to at least a 38 slow (pilot) jet, and a 100 main jet. buy a 40 slow jet and a 102 or 105 main jet when you order the jets just in case you have to go richer. You can get them from Chapparal or jetsrus. Cost about 3 bucks each. The dealer can order them as well. They get $16 each!!



Ted K.

 

[Pat Farsole]

^^^^^ ... The same jetting works spot on in Australia too ... ^^^^^^