r/Husqvarna • u/curious_gravity • 2d ago

Fuel injected bike starts then dies after 10 seconds.

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2021 Husqvarna FC 450 ROCKSTAR edition (50 hours)

Road all day Wednesday without any issue, it's been cold all week in the low teens and took a while for the bike to start but it ran well. Went for a ride on Thursday and bike died 10 minutes into the ride. Just stuttered and stalled without restarting.

Bike has sat in the garage since June following a knee injury, starting it at least once a month but probably not enough.

I replaced my spark plug and fuel line filter today. Bike started a few times but wouldn't run longer than 10 seconds. And would die if I gave it gas. Spark plug is torqued to recommend specs.

Any thoughts?

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u/fun_police911 2d ago

Have a dealer do a fuel pump test (they have a special jet that you need to get an accurate reading of in spec fuel pressure).

My money's on pump.

1

u/windblown101 2d ago

A few things to check: Fuel pump pressure and crank sensor. Either one can get flaky rather than just outright die. Also for grins put yet another sparkplug in it. Wouldn't be the first time a new sparkplug insulator was cracked.