Husqvarna 340, 345, 346XP,350, 351, 353 manual Ignition module - testing, Model 346XP

Repair instructions

Ignition module – testing

If there is a fault in the ignition system the ignition module must be tested before the ignition system is removed.

Test the ignition module as follows:

•Connect a test spark plug 502 71 13-01 to the ignition lead and clip the test spark plug onto the cylinder.

•Turn the engine over using the starter cord.

•If the test spark plug produces a spark the ignition module is OK.

Ignition module/flywheel – removal

1

Remove the cylinder cover. Disconnect the HT lead, remove the spark plug and fit piston stop 502 54 15- 01 in its place. Take off the starter assembly, release the leads from the cable guide and remove it.

Model 346XP, 351, 353:

Remove the cover from the hand grip.

2

If replacing the ignition module, disconnect its leads and unscrew it. The ignition module can be left in place if you are simply removing the flywheel.

3

Loosen the flywheel nut using a suitable socket and unscrew it until it is flush with the end of the shaft.

4

Position puller 504 90 90-02 over the magnets and counterweight on the flywheel. Tighten 2–3 turns and tap the head of the puller with a metal mallet to release the flywheel. Remove the puller, nut and washer. Lift off the flywheel.

Cleaning and inspection

•Clean all parts, especially the tapers on the flywheel and shaft.

•Check that the flywheel is not cracked or dam- aged in any other way.

English – 23