![background image](http://html.mh-extra.com/html/stihl/fs-25-4/fs-25-4_user-manual_1379255004.webp)
Type:
Electronic magneto
ignition (breakerless)
with integral trigger unit
Ignition timing:
27 degrees B.T.D.C.
Air gap:
0.35 - 0.5 mm
Spark plug (suppressed):
NGK CR5HSB,
Denso U16FSR-UB
Electrode gap:
0.6 - 0.7 mm
Type:
Spiral-toothed
bevel gear drive
Gear ratio:
1:1.4
Bearings:
Deep groove ball bearings
Lubrication:
STIHL gear lubricant
0781 120 1117, 1118
(capacity 7 g)
Full harness
Safety glasses
Transport guard for
Metal cutting tools
4119 717 3005
STIHL gear lubricant (80 g tube)
0781 120 1109
STIHL gear lubricant (80 g tube)
0781 120 1117
4
FS 25-4, 65-4