Stihl MS 290 Manual

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

Stihl MS 290 Specifications

General

Displacement	56.5 cc
Weight	5.9 kg
Fuel Capacity	460 ml (15.5 oz)
Powerhead Weight	5.9 kg
Power Output	2.8 kW
Weight (without cutting equipment)	5.9 kg
Chain Pitch	3/8"
Chain Oil Capacity	0.33 l
Guide Bar Lengths	40-50 cm (16-20 in)
Oil Capacity	0.33 l
Fuel Tank Volume	560 cc
Oil Tank Volume	0.33 l
Guide Bar Length (recommended)	40-50 cm (16-20 in)