the last shut down before winter storage

[fizeus]

Yesterday during beer, waiting for the next Italian Covid Lockdown I was discussing with friends about before winter storage "to dos"
Apart fuel stabilizers with tank full... can anyone please tell which is the best way to leave carburators empty?

Someone told me to simply rev the engine near 5000 rpms and then immediately turn off the key (he says the the engine residual rotation can quite totally drain the fuel from the carburators) ... but is this a correct way to shut-down a flat-six engine (I've never heard of it)?

I remember someone on the forum suggested to remove the fuel pump fuse and let the engine running until the carburators drain ... but which is the fuse ?


Are those methods safer than unscrewing the plug the the base of the float bowl ?


... can experts please tech me ?

[otto_kretschmer]

I've never seen a carb with a float bowl drain so I'm doubtful about your last idea.

You could either pump all the fuel out of the tank and let the engine run until it shuts down or clamp the fuel line and run the engine until it dies.

[kent olsen]

Weber's?? If you pull the main jets the fuel will drain. However all I've ever done is put the fuel stabilizer in mine, run it for a little and I've never had an issue with my Webers, Carter AFB and my SU's. Surprisingly I've never had a problem with my lawn mower either.

[fizeus]

ok,
thank you for all your replies...
but has any sense to rev the engine and then shut it down ? can this be harmful in someway?

has the 911 a specific fuse for the fuel pump ?