does any one know what the PRI means on the kfx400. It has no "reserve" option on the gas valve thing. It has "on" "off" and "pri" what does PRI mean? any one?

 

It means "prime". Your quad has a vacuum petcock that only feeds the carb fuel while the engine is running. It works off of the motors intake pulses. If you were to drain the float bowl dry the "pri" position on the petcock gives fuel from the tank a straight shot to the bowl.
Just don't run the bike in the "pri" position.

 

... how come i shouldnt run it on the "pri" position?
.. what happens and whats the results of doing this.