Husqvarna K770 Workshop Manual page 34

6.6.5 Carburettor components
9
8
7
1. Throttle valve
2. Air valve
3. Choke valve
4. Pulse line, to the pump diaphragm of the carburetor
5. Fuel line
6. Connection to air purge
7. High and low speed jet (set at the factory)
8. Idle screw, speed adjustment
9. Throttle rod for the choke
10. SmartCarb
11. Pump diaphragm – on top in relation to the
crankcase through the pulse line – fuel below the
diaphragm
12. Valves of the fuel pump
13. Fuel chamber, measurement chamber diaphragm
above
14. Needle valve for pressure regulator
6.6.6 Pressure tester
The pump piston of the pressure tester (refer to
Servicing tools overview on page 11 ) must be operated
with one hand. The pressure tester is supplied with an
adapter for small dimensions. Make the hose connection
34 - Repair and servicing
2
4
1
6
5
3
10
as short as possible, this gives a more accurate test
result.
6.6.7 To remove the air valve
It is not necessary to remove the air valve to do
servicing on the carburetor, but it makes it easier.
11
12
14
13
651 - 001 - 27.06.2018