The pilot jet is clogged, get a new one or clean it very well, add fresh gas and go...but you might need to clean the carb some.
No, only use the choke until the bike can idle without it
That vehicle is throttle body fuel injected, there is no choke or idle adjustments. You have other issues such as a large vacuum leak causing your idle problem.
Your motorcycle might idle fine and bog out when in gear because of a problem with the carburetor or the bowl. If either area is dirty, it will often bog the bike when in gear.
Sounds like a choke problem/fast idle speed adjustment.
i had the same problem and it was just that the idle screw needed to be adjusted. its on the right side of the bike and its a little knob that you can turn with your fingers. Start the bike with the choke on and let it warm all the way up and then adjust the knob clockwise to make it idle faster until you can close the choke all the way
usually that has something to do with the carburetor. rather the air to gas ratio is not even or it needs cleaned.
a lot depends on the engine??possibly a problem with the choke,or a solenoid if a diesel.
the choke is on
you choke may be on
there should be an idle adjustment on the right side of it
The choke mechanism on your 98 Explorer could be sticking. The EGR valve could also not be functioning right. Either of these issues could cause the rough idle problem.
If it only runs on idle that usually means that the carburetors are clogged up and need to be cleaned out and tuned. (might not need tuning)