Husqvarna K770 Workshop Manual page 45

valve closes because of the combustion pressure, as
shown in figure 2.
1
6.7.2 To disassemble the decompression valve
1. Remove the decompression valve with a long socket
or the combination wrench.
701 - 002 -
2
6.7.3 To examine the decompression valve
It is not necessary to start the product to examine the
decompression valve.
1. Make sure that the decompression valve moves.
2. Clean the decompression valve.
3. Apply leakage spray or soap water on the
decompression valve before installation.
4. Install the decompression valve. See
decompression valve on page 45 .
5. Move the stop button to the stop position.
6. Slowly pull the starter rope handle and look at the
decompression valve to make sure that there are no
leaks.
6.7.4 To install the decompression valve
1. Clean and examine the sealing washer before you
install the decompression valve.
To install the
Repair and servicing - 45