Specifications; Engine; Ignition System; Fuel System - Stihl BR 500 Service Manual

3.

Specifications

3.1

Engine

Displacement:
Bore:
Stroke:
Operating speed with nozzle:
Idle speed:
Crankcase leakage test
at gauge pressure:
under vacuum:
3.2

Ignition System

Air gap between ignition module and fanwheel:
Spark plug:
Electrode gap:
3.3

Fuel System

Carburetor leakage test at gauge pressure:
Operation of tank vent at gauge pressure:
Fuel:
BR 500, BR 550, BR 600
BR 500
3
64.8 cm (3.95 ci) 64.8 cm
50 mm (2.55 in) 50 mm (2.55 in)
33 mm (1.3 in) 33 mm (1.3 in)
5500 rpm
2500 rpm
0.5 bar
0.5 bar
0.15...0.3 mm 0.15...0.3 mm
(0.006...0.012 in) (0.006...0.012 in)
NGK CMR 6 H NGK CMR 6 H
0.7 mm (0.028 in) 0.7 mm (0.028 in)
0.8 bar
0.3 bar
as specified in as specified in
instruction manual instruction manual
BR 550 BR 600
3
(3.95 ci) 64.8 cm
50 mm (2.55 in)
33 mm (1.3 in)
6100 rpm 7200 rpm
2500 rpm 2500 rpm
0.5 bar 0.5 bar
0.5 bar 0.5 bar
0.15...0.3 mm
(0.006...0.012 in)
NGK CMR 6 H
0.7 mm (0.028 in)
0.8 bar 0.8 bar
0.3 bar 0.3 bar
as specified in
instruction manual
3
(3.95 ci)
3