i am going riding this weekend and i need to know how to install the jet screws and where they go on a 250ex. I do not have instructions i bought it from a dealer and all they gave me was a screw, needle, and the washers they could not help me with out my 4wheeler being there. I got the right size i just need to know where it goes and how to install it. Thanks Crazyfor4wheels

 

Try this http://www.dynojet.com/pdf/Q110.002.pdf

 

FAST TIP!!!!!

DO NOT attepmt to change the jets today. You'll be in a hurry and possibly mess something up. Do it when you get home, that way you'll have all week to get it done.

Rob

 

yeah good tip. It takes a bit to tune with jets, and if you screw something up, you could toast your engine by running it too lean.

better to enjoy it this weekend and tackle it next week