Is their a write up how too do it? Im not a moron i am just learning about skis, i know where the fuel accelarator is located, is that the low or high that you adjust there?
when you open the lid to the engine looking down there are 3 adjustments that you see, the 2 low adjustments and 1 idle, the idle has the spring on it, screw them all the way in (clockwise) and then turn each out 1 1/2 turns, then your ready to set the high settings, you need a mirror because their up under the carbs, they will have a plastic cap or you will see the brass screws if the caps have been removed, screw both screws all the way in and thats it, after doing this throw a set of br8es plugs in it and test it out.
if this doesnt work you might have to pull the carbs off, im new to this also, im used to bmws and mercedes, i just bought a 99 xpl, ive been working the bugs out of it for a week now and its getting better, mine is doing the same thing, i just ordered carb kits today, good luck with yours