Hi Mower freak and Tyler,
I haven't seen and read the leaflet or user instruction guide but it make sense with plastic needle that it's a good practice to turn off the fuel tap and run the engine until it stops since the plastic needle can't completely shut off the valve unlike the viton tip needle. When this happens during the storage, it will floods the chamber before overflow depends on horizontal alignment whether the overflow is higher than the jet. This is not the case with viton tip since viton tip can completely shut off the valve but NormK has point out with sticking needle when reservoir or bowl is full prior for storage. With the newly design needle spring lever, it will address all this issue and closing the fuel tap or leaving it open is not applicable anymore means you can do either way.
Cheers,
TheCarby
