34 Series 4144 Powerhead
Check the flywheel:
– Have pole shoes turned blue?
– Install new flywheel if necessary,
b 7.5
Air gap:
– Check ignition module/flywheel,
– reset if necessary, b 7.1.1
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
spec. < 10 Ω,
If necessary, install new spark plug boot and/or
ignition module, b 7.4, b 7.1.1
Check short circuit wire:
– Wire damaged?
– Connectors firmly seated?
– Check continuity, replace short circuit wire if
necessary – see service manual for "Series
4144 Components – FS, FC, KM"
1
3
yes
no
Powerful
spark?
2
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