Fuel System; Ignition System; Chain Lubrication - Stihl MS 290 Manual

3.2

Fuel System

3.3

Ignition System

3.4

Chain Lubrication

MS 290, MS 310, MS 390
Carburetor leakage test
at gauge pressure:
Operation of tank vent at gauge
pressure:
Fuel:
Air gap between ignition module
and fanwheel:
Spark plug (suppressed):
Electrode gap:
Fully automatic, speed-controlled oil pump with rotary piston
Oil delivery rate:
0.8 bar (11.60 psi)
0.3 bar (4.35 psi)
as specified in instruction manual
0.15 – 0.3 mm
Bosch WSR 6F
NGK BPMR 7 A
0.5 mm
3
8 – 18 cm at 10,000 rpm
5