Husqvarna 343R, 345RX, 343F, 345FX, 345FXT manual Fuel pump, Carburettor, Dismantling, Fuel system

3 Fuel system

18

Clean the filter externally if it is not too	If the filter is not too dirty, its surface
dirty.	can be cleaned with a brush.
Replace the filter if required.	Otherwise it must be replaced.
	Check the fuel hose for cracks and
	leaks.
	Make sure that the filter’s connection
	neck is inserted as far as possible into
	the fuel hose and that the O-ring is
	sufficiently tight so that the filter cannot
	slide off the tube.

Fuel pump	Fuel pump
The fuel pump facilitates cold starts.	The fuel pump has the task of facilitat-
The pump cannot be repaired and must	ing the start of the engine when cold.
	The pump fills the carburettor with fuel
be replaced if it stops working.
	before attempting to start the engine.
Note how the fuel hoses are connected
	This also prevents vapour bubbles from
to simplify assembly.
	blocking the narrow fuel channels.
	If the pump does not work it must be
	replaced.
	Note how the fuel hoses are connected
	to simplify assembly.

Carburettor	Carburettor
Dismantling	Dismantling
Blow clean the carburettor compartment.	1.Remove the carburettor cover and
Loosen the bolts (A) and remove the	blow the carburettor compartment
	clean with compressed air.
nuts (B).
Remove the fuel hose (C) and fold the	2.Loosen the bolts (A).
filter holder aside.	3.Remove the nuts (B).
	4.Remove the fuel hose (C) from the
		carburettor and the filter holder.

505 38 13-08	502 50 18-01
Move the fuel tank so far forward that		5.	Move the fuel tank so far forward
the fuel hoses (C) and (D) can be			that the fuel hose (C) becomes
removed.			accessible.
			Move the O-ring back and remove
			the hose from the nipple.
			Also remove the fuel hose (D) from
			the nipple on the tank.