sawster
ArboristSite Lurker
Hi everyone I am new to the forum and hope to learn a lot. I have a stihl ms 170. about 5 years old but only used 3 or 4 times cranks right up idles great excepts fuel to a point then bogs I have checked the exhaust screen it is clean, looks brand new. I found today that if I pull the cover crank it up, restrict the hole that is in the center of the filter she will rev perfectly as soon as I move my thumb away it will not perform correctly. I am thinking fuel filter and or fuel line, because it has to have help creating the vaccum to pull the fuel. Has anyone got any suggestions thanks in advance