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husqvarna 350 spewing fuel out of intake when runniNG


cameroncrofter
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The back fire suggests the ignition timing is incorrect and that the flywheel has spun round on the crank and sheared the key but generally it wouldn't run when this happens. 

It is however, worth pulling the flywheel off and checking the flywheel, especially if you can do that sort of work.

The over revving - in your first video, the saw sounded pretty strangled and no sign of it over revving, when does this happen and if you turn the H screw anti clockwise, does it stop over revving?

Over revving is generally caused by an air leak or an incorrect setting on the H screw....just so you know.

The 350 is prone to leaking air between the lower engineering plastic cradle and the upper crankcase. This wouldn't cause the fuel to come out of the inlet but would cause over revving.

Strange you have over fuelling and over revving together as too much fuel means lower revs as can be seen in the first vid.

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3 minutes ago, spudulike said:

The back fire suggests the ignition timing is incorrect and that the flywheel has spun round on the crank and sheared the key but generally it wouldn't run when this happens. 

It is however, worth pulling the flywheel off and checking the flywheel, especially if you can do that sort of work.

The over revving - in your first video, the saw sounded pretty strangled and no sign of it over revving, when does this happen and if you turn the H screw anti clockwise, does it stop over revving?

Over revving is generally caused by an air leak or an incorrect setting on the H screw....just so you know.

The 350 is prone to leaking air between the lower engineering plastic cradle and the upper crankcase. This wouldn't cause the fuel to come out of the inlet but would cause over revving.

Strange you have over fuelling and over revving together as too much fuel means lower revs as can be seen in the first vid.

Put new flywheel on and still no luck not as much fuel now but still over reving 

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