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Specifications

 

 

 

 

Engine

 

 

 

 

STIHL single cylinder two-stroke engine

 

 

 

 

 

 

 

 

 

 

MS 270

MS 270 C

MS 280

MS 280 C

 

 

 

 

 

Displacement

3.0 cu in

3.0 cu in

3.3 cu in

3.3 cu in

 

(50 cm3)

(50 cm3)

(54.68 cm3)

(54.68 cm3)

Bore

1.73 in

1.73 in

1.81 in

1.81 in

 

(44.0 mm)

(44.0 mm)

(46.0 mm)

(46.0 mm)

Stroke

1.30 in

1.30 in

1.30 in

1.30 in

 

(32.9 mm)

(32.9 mm)

(32.9 mm)

(32.9 mm)

Idle speed

2,800 rpm

2,800 rpm

2,800 rpm

2,800 rpm

Weight without bar and chain

11.7 lb (5.3 kg)

11.9 lb (5.4 kg)

11.7 lb (5.3 kg)

11.9 lb (5.4 kg)

EPA / CEPA:

The Emission Compliance Period referred to on the Emissions Compliance Label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements.

Category:

A = 300 hours, B = 125 hours, C = 50 hours

CARB:

The Emission Compliance Period used on the CARB-Air Index Label indicates the terms:

Extended = 300 hours, Intermediate = 125 hours, Moderate = 50 hours

Electronic magneto ignition system

breakerless

Spark plug (suppressed)

Bosch WSR 6 F, NGK BPMR 7 A

Electrode gap

0.02 in (0.5 mm)

Fuel/Oil System

Diaphragm carburetor

All position with integral fuel pump

Fuel tank capacity

1.1 US pt (0.520 l)

Fuel mixture

See "Fuel"

Chain lubrication

Fully automatic, speed-controlled reciprocating oil pump. Additional manual oil flow control.

Oil tank capacity

0.6 US pt (0.280 l)

MS 270, MS 270 C, MS 280, MS 280 C

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