Download FS 550

2.3
Ignition System
Type:
Air gap:
Spark plug (suppressed):
Electrode gap:
Spark plug thread:
Length of thread:
2.4
Gearhead
Electronic magneto
ignition (breakerless)
with integral trigger unit
and electronic speed
governor
0.2 - 0.3 mm (0.008 - 0.012 in)
Bosch WSR 6F,
NGK BPMR 7 A or
Champion RCJ 6Y
0.5 mm (0.020 in)
M14x1.25
9.5 mm (0.37 in)
Type:
Spiral-toothed
bevel gear drive
Gear ratio:
1:1.33
Bearings:
Deep groove ball bearings
Lubrication:
STIHL gear lubricant 0781 120 1117
2.5
Special Accessories
2.5.1
For User
Full harness
Safety glasses
Transport guard for
metal cutting tools
STIHL gear lubricant (80 g/3 oz tube) 0781 120 1109
STIHL gear lubricant (80 g/3 oz tube) 0781 120 1117
2.5.2
For Service
Carburetor parts kit
Set of gaskets for FS 500, 550
4
4116 007 1061
4116 007 1051
FS 500, 550