Stihl MS 311 Manual

49MS 311, MS 391
Check the flywheel:
– Have pole shoes turned blue?
– Install new flywheel if necessary,
b 7.6
Air gap:
– Check ignition module/flywheel,
– reset if necessary, b 7.3
Check the ignition lead:
– Severe chafing?
– Spark plug boot: Holes/cracks?
– Resistance: spark plug boot to ground:
spec. 1.5 – 12 kΩ
– Check resistance of ignition lead (spark plug
boot and ignition module removed)
Spec.: < 10 Ω,
If necessary, install new spark plug boot and/or
ignition lead with module,
b 7.3
Check short circuit wire:
– Wire damaged?
– Connectors firmly seated?
– Check continuity, replace wiring harness if
necessary, b 7.7.2
1
3
yes
no
2
Powerful
spark?

Stihl MS 311 Specifications

General

Oil tank capacity	0.348 L
Fuel tank capacity	0.6 L
Power source	Gasoline

Weight and Dimensions

Weight	6200 g