Bought a string line trimmer, a Stihl FS90r, had it five years , only used it a couple of hours each year, just used 125 feet of trimmer line in the five years I've owned it. The timing pin suffered premature wear causing the clylinder head to wear out, repair cost was more than I new trimmer. Though it was out of warranty , Stihl cover the whole cost of the repair. These guys stand behind... more