Ignition System - Husqvarna K970 III Workshop Manual

6.1.11 To assemble the starter pawls
CAUTION: The spring must not get caught
between the starter pawl and the flywheel.
1. Push the spring into position in the flywheel.
2. Install the washer, the starter pawl and the shoulder
screw.
3. Bend the end of a thin steel wire. Use it to pull the
spring to the mounting on the opposite side.
26 - Repair and servicing
6.1.12 To install the starter
The starter pawls must come into the correct position
against the starter pulley sleeve.
1. Pull out the rope approximately 0.5 m.
2. Keep this position and set the starter against the
product.
3. Slowly release the rope until the starter pawls come
into the correct position.
4. Tighten the 4 screws on the starter to a torque of 7–
9 Nm.

6.2 Ignition system

6.2.1 Function
The ignition system has no moving parts and it is not
sensitive to moisture and dirt.
It is not necessary to adjust the ignition point.
The product has an overspeed protection rev limiter.
The limit is 9300 rpm.
The ignition system has a primary coil (A) and a
secondary coil (B). They are wound around an iron core
(C). An electronic digital unit (D) controls the switch
function.
The voltage sequence is in the diagram in the
illustration. The dotted line shows the voltage if the
current is not broken.
Current moves through the coil by the permanent
magnet on the flywheel. The electronic digital unit
senses the voltage in the primary coil. It breaks the
current before the piston is at the high turning point.
Until this point, the primary coil is in a closed circuit.
With an open circuit the current stops to flow and
voltage increases from 5V (Volt) to approximately 200V.
The primary and secondary coil work as a step-up
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