Chainsaw Repair

I'm far from an expert (a beginner when it comes to this stuff in fact - having carb issues of my own), but have you tried adjusting the throttle setting at all? The L jet alone I don't believe will cure starting/idling troubles if the throttle is set to low or high. I've never quite understood how to balance the adjustments between these two to get the ride idle speed, but I was taught in one of my first chainsaw courses to close up the throttle (counter clockwise adjustment) if the chain was spinning at idle. From there you can tackle the L settings. Someone else may have better / corrected info about that...