Stihl MS 290 Manual

4 MS 290, MS 310, MS 390
3. Specifications
3.1 Engine
MS 290 MS 310 MS 390
Displacement: 56.5 cm
3
59.0 cm
3
64.1 cm
3
Bore: 46 mm 47 mm 49 mm
Stroke: 34 mm 34 mm 34 mm
Engine power to ISO 7293: 3.0 kW (4.1 bhp)
at 9,500 rpm
3.2 kW (4.4 bhp)
at 9,500 rpm
3.4 kW (4.6 bhp)
at 9,500 rpm
Max. permissible engine speed
with bar and chain: 12,500 rpm 13,000 rpm 13,000 rpm
Idle speed: 2,800 rpm
Clutch: Centrifugal clutch without linings
Clutch engages at: 3,500 rpm
Crankcase leakage test
at gauge pressure: 0.5 bar
under vacuum: 0.5 bar
3.1.1 Engine (USA only)
MS 290 MS 310 MS 390
Displacement: 3.44 cu. in 3.6 cu. in 3.91 cu. in
Bore: 1.81 in 1.85 in 1.92 in
Stroke: 1.33 in 1.33 in 1.33 in
Engine power to ISO 7293: 2.8 kW (3.8 bhp)
at 9,500 rpm
3.0 kW (4.1 bhp)
at 9,500 rpm
3.2 kW (4.4 bhp)
at 9,500 rpm
Max. permissible engine speed
with bar and chain: 12,500 rpm 13,000 rpm 13,000 rpm
Idle speed: 2,800 rpm
Clutch: Centrifugal clutch without linings
Clutch engages at: 3,500 rpm
Engine leakage test
at gauge pressure: 7.25 psi
under vacuum: 7.25 psi

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)