Powerful 37.7cc Quality Unit That Requires 50:1 Fuel Oil Mix. Great Solution / Upgrade If You Have A Good Shaft And Gearhead To Use. Shafts Work From Many Models Such As FS251R FS90R FS91R FS110R FS100RX FS110R FS111r KM94 KM90 KM91 KM131 KM130 FS85 FS80 FS131R FS130R FS240R FS250R.
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