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68.7cc the super is 72
With Stihl most Super models have a piston diameter that is 2 mm larger than the other version of the same model. The Super is still an AV otherwise as that stands for anti-vibration, which means that it usually has four shock mount buffers between the engine and handle
Engine: Fan cooled STIHL two-stroke engine with specially coasted cylinder bore.Displacement: 72.2 cm3Engine Power: 3.6kw - 4.9 hpWeight of power unit: 6.6kgFuel Tank Capacity: 680cm3Chain Oil Capacity: 360cm3Mixture: 1:25 or 1:50 when using STIHL two-stroke engine oil.Electronic ignition system, dust-tight sealed.All position diaphragm carburettor with integral fuel pump.Bar Lengths: 40, 45 and 50cm
Per the tech manual, clockwise until it stops, then back 1 1/4 turns.
.033-.038 for stock plugs which for the carburetted 4.2 recommended plug is Champion RFN14LY or equivalent.
Gap the plugs .038" to .043" and torque the plugs to 22 ft/lbs.
.038 to .043 for the 96cu. I alays run at .040 and no problems yet!
038%
.038
.038
.038
0.038