4 FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85
3. Specifications
3.1 Fuel System Carburetor: Diaphragm carburetor
Carburetor leakage test at gauge
pressure: 80 kPa (0.8 bar)
Fuel mixture: Regular brand-name gasoline with
min. 90 RON and STIHL 50:1
two-stroke engine oil; see instruction
manual for further details
Rated idle speed: 2,800 rpm
Rated cut-off speed: 10,500 rpm
Operation of tank vent:
- at gauge pressure: 50 kPa (0.5 bar)
- under vacuum: 20 kPa (0.2 bar)
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