Husqvarna 343F, 345FX, 345FXT, 343R, 345RX manual Replacing the spark Plug cover, 502 50

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2	Electrical system
	Still no spark?	Still no spark?
	Check the air gap.	Check the air gap between the flywheel
		magnet and the ignition module. The
		gap should be 0.3 mm.
		Use a 502 51 34-02 feeler gauge.
	0.3
	502 51 34-02
	Adjust the air gap.	Adjust the air gap as needed to the
		correct value.
		•	Loosen the bolts.
		• Position the feeler gauge and press
			the ignition module against the
			flywheel.
		• Tighten the bolts and check the air
			gap again.
		If the spark plug still does not fire, the
		ignition system should be replaced.

Replacing the spark		Replacing the spark
plug cover		plug cover
1. Insert the ignition cable through the		1. Lubricate the ignition cable with a
spark plug cover.		little grease and thread it through
2. Make a hole in the ignition cable for		the spark plug cover.
2. Make a hole in the ignition cable for
the ignition coil.		2. Cut off a bit of the ignition cable
		(approx. 5 mm) and make a hole in
		the cable for the ignition coil with
		the aid of a pair of no. 502 50 06-01
		the aid of a pair of no. 502 50 06-01
		pliers.

502 50 06-01
3. Attach the ignition coil to the ignition		3.	Attach the ignition coil to the ignition
cable.			cable and ensure that the wire is
			folded along the cable.
		4.	Pull the ignition coil into the spark
			plug cover.

NOTE!

It is important that the tip of the ignition coil hits the centre of the ignition cable to prevent sparking.

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Contents English Workshop Manual Brushcutter, Trimmer Model 343R, 345RX, 343F, 345FX, 345FXT ContentsGeneral recommendations Starter ContentsDismantling 1StarterStarter AssemblyReplacing the drive dogs Electrical system 502 71 Electrical systemChecking the ignition spark Tip 502 50 Replacing the spark Plug cover502 54 Heated handles Drive dogsWiring diagram Electrical system Fuel system Air filter Fuel systemFuel filter Tank ventingDismantling Fuel pumpCarburettor Blending unit Carburettor’s designMetering unit Dismantling the carburettor Pump unitFuel system Little shorter than the L-needle PositionedFor example, the H-needle is a Assembling the carburettor Are not bent or pinched when H-needle is a little shorterThan the L-needle Check carefully that the fuel hosesFine adjustment Carburettor settingsBasic setting Idling speed T-screw Setting Recommended max. speed must not be exceededCorrectly adjusted carburettor Tachometer should always be used to find the optimalRotating Carburettor adjustment 345RX/FXAdjusting the L-needle Adjusting the H-needle ThrottleCheck for wear on pins a and B Tip Page Centrifugal clutch 502 21 Centrifugal clutchDo not lose the sleeve bearings found in the clutch shoes Centrifugal clutch502 11 Clutch drumChange the bearings in the clutch housing if necessary Page Angle gear Let the small circlip around the axle remain Angle gearInput axle with pinion must be dismantled first 503 97503 80 ShaftCylinder and piston Cylinder and piston Decompression valve Turn the valve the right way when fittingWhen the valve is fitted the small hole must face outwards Inlet manifold Cleaning, inspectionCause Action Analysis and actionsInsufficient lubrication Piston scoring caused by heavy carbon deposits Piston ring breakage Piston damage caused by a too high engine speedCause Foreign objectsDefect Action Service tipsWear tolerances Crankshaft and crankcase Crankshaft and crankcase 502 52 Crankshaft and crankcaseInspecting Crankshaft Assembly To ensure a proper seal Leakage testing CrankcasePress down the sealing plates as Far as possible between the bolts503 55 Husqvarna E-Tech