Hello new guy here. I just picked up a 1999 MXZ 440 F/C which runs great once you get it started and warmed up. Problem is getting it started before my arm gives out. I have checked compression which is 135 psi in each cylinder so good there. New NGK plugs. The guy that I acquired the sled from said he removed the carbs and cleaned them and I'm thinking the choke plungers are out of adjustment or the air screws are not set correctly. Does anyone have a good procedure for adjusting the plungers and what the air mixture needles are suppose to be set at. Thanks in advance.