Genuine STIHL - Idle Speed Adjustment Screw - 1143-122-6203

Compatibility

Fits 2 STIHL models: STIHL MS 251 and STIHL MS 661 Chainsaw (Displacement: 5.6 cu-in, Power: 5.40 kW, Engine power: 7.30 HP, Device weight without refuelling: 16.8 lb (without guide bar and saw chain), Power-to-weight ratio: 1.40 kg/kW, Groove width: 50 ", Saw chain pitch: 3/8", Device length with bumper spike: 482 mm (without guide bar and saw chain)).