18 Series 4180 Powerhead
: Ease the spring clip (1) off the 
starter post.
Do not take the rope rotor off the 
starter post.
: Pull the pawl (2) out of the rope 
rotor.
– Lubricate peg on pawl with 
grease, b 12
– Remove the rope rotor, b 5.3
The pieces of broken spring may 
still be under tension and may fly 
apart unexpectedly when you 
remove them.
To reduce the risk of injury,
wear a face shield and work gloves.
– Remove the spring housing and 
parts of the spring.
– Lubricate the new spring with a 
few drops of resin-free oil.
: Position the new spring housing 
(bottom plate must face up) as 
shown (arrows) and push it 
home.
– Install the rope rotor, b 5.3.
– Install the starter rope, b 5.4
Reassemble all other parts in the 
reverse sequence.
– Remove the rewind starter, 
b 5.2
: Take out the screws (1 and 2).
: Carefully pull off spark plug boot 
(3) vertically.
: Take out the screw (1).
– Remove the shroud upwards, 
and pull the spark plug boot 
through the shroud at the same 
time.
Reassemble in the reverse 
sequence.
– Tighten down the screws, b 3.4
5.5 Pawl 5.6 Replacing the Rewind 
Spring
5.7 Removing the Shroud