Spark Plug CMR6H for Stihl Chainsaw MS171 MS181 MS192 MS193 MS201 MS201T MS211 MS231 MS241 MS251 MS150 Stihl PN 0000 400 7011USD 1.93/lot Ignition Module Spark Plug CMR6H For STIHL MS231 MS231C MS231C-BE MS231 2-Mix MS231CBE 2-Mix MS231Z MS251 MS251C MS251 2-MixUSD 15....
Change spark plugs, purchase the purest of fuel; use fuel additives. No start and will not continue to run. two years of the same. This manufacturer is very overrated and people purchase because the name sounds VERY STRONG and Dependable, far from that.I am taking these three to the curb...