STIHL 064, 066 5
1.3 Ignition System 064 066
Type: Electronic magneto Digital magneto
ignition (breakerless) ignition (breakerless)
with integral trigger with maximum speed
unit governor
Air gap: 0.2-0.3 mm (0.008-0.012 in) 0.2-0.3 mm (0.008-0.012 in)
Ignition timing: 2.6-3.4 mm 2.9-3.9 mm
(0.10-0.13 in) B.T.D.C. (0.11-0.15 in) B.T.D.C.
at 8,000 rpm at 8,000 rpm
Advance angle: 26°-30° B.T.D.C. 27.5°-32.5° B.T.D.C.
at 8,000 rpm at 8,000 rpm
Spark plug (suppressed): Bosch WSR 6 F or Bosch WSR 6 F or
NGK BPMR 7 A NGK BPMR 7 A
Electrode gap: 0.5 mm (0.020 in) 0.5 mm (0.020 in)
Spark plug thread: M14 x 1.25 M14 x 1.25
Length of thread: 9.5 mm (0.37 in) 9.5 mm (0,37 in)
Heat range: 200 200
LED: Aids carburetor adjustment
1.4 Cutting Attachment
Guide bars: STIHL Rollomatic S bars STIHL Rollomatic S bars
with sprocket nose. with sprocket nose.
STIHL Duromatic bars STIHL Duromatic bars
with stellite-tipped with stellite-tipped
nose. nose.
Both types with Both types with
corrosion-resistant corrosion-resistant
finish and induction finish and induction
hardened rails. hardened rails.
Bar lengths: Rollomatic: 40, 45, 50 Rollomatic: 40, 45, 50
63, 75 and 90 cm 63, 75 and 90 cm
(16, 18, 20, 25, 30 (16, 18, 20, 25, 30
and 35 in) and 35 in)
Duromatic: 40, 45, 50, Duromatic: 40, 45, 50,
63 and 75 cm 63 and 75 cm
(16, 18, 20, 25 and 30 in) (16, 18, 20, 25 and 30 in)