I've been servicing a 193 for a tree removal company for the past three years. Each time I have to tweak the carb by opening up the low-speed setscrew 1/8 turn, otherwise it's sluggish on acceleration. Eventually, I'll clean the carb. This saw gets hora and hours of use every year. My biggest worry is the belt hook (loop) on the back of the saw. It's too weak and one day it will be ripped right off the same way that other Stihls have shown up. Some of those are in rather sad shape when dropped from 30 to 40 feet up.
