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5. Measure the height (A) of the lever arm and adjust
the height if it is necessary. Correct height is
4±0.5mm.
6. Examine the distance piece for damage. Replace
the distance piece if it is damaged.
7. Examine the remaining parts. Replace damaged
parts.
7.7.8 To adjust the idle speed
The idle speed is adjusted at the factory before the
product is supplied. An adjustment of the idle speed can
become necessary because of changes in the operation
conditions, for example, in the air.
WARNING: If the cutting attachment does not
stop when you adjust the idle speed, speak to
your servicing dealer. Do not use the product
until it is correctly adjusted or repaired.
•
Make sure that the throttle wire is parallel with the
flexible shaft. If the throttle wire is twisted, make the
throttle wire straight.
•
If the shaft is bent, the play of the wire is changed.
Make the shaft straight and put the product in the
position you usually operate it before you adjust the
idle speed.
•
The idle speed is correct when the engine operates
smoothly in all positions. The correct idle speed is
set when the product does not stop and the cutting
equipment does not rotate.
1. Start the engine and operate the product at half
speed for >2 minutes until the engine becomes
warm.
2. Turn the idle adjustment screw clockwise until the
cutting attachment starts to rotate.
1296 - 001 - 27.09.2019
3. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
Note: Refer to
recommended idle speed.
7.8 Ignition system
A
7.8.1 Introduction
The engine has an electronic ignition system fully
without moving parts. A defective component cannot be
repaired, but must be replaced by a new component.
If the engine does not fire, the ignition module can be
damaged. Before you replace the ignition module, do
the tests that follow.
7.8.2 To examine the spark plug
CAUTION: Always use the recommended spark
plug type. Incorrect spark plug type can cause
damage to the product.
•
Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
•
To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
a) Make sure that the idle speed is correctly
adjusted.
b) Make sure that the fuel mixture is correct.
c) Make sure that the air filter is clean.
•
If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 45 .
•
Replace the spark plug if it is necessary.
7.8.3 To do a spark test of the ignition module
1. Disconnect the spark plug cable from the spark plug.
2. Disconnect the spark plug from the cylinder.
Technical data on page 45 for the
Repair instructions - 23
Technical data
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