Originally Posted by kccats
Be sure to floss the pilot jet!
You for your help.
All my jets are new.
Just in case anyone comes across this this thread and is asking the same question:
The needle valve (obviously) affects the amount of fuel to the engine. The higher the number, the richer the air/fuel ratio. Arctic cat says a P3 for my sled in the manual. They recommend a P0 for altitudes above 20,000 feet. I have one on order. I am also looking at ordering new weights and spring for my primary. I'll keep you posted.