I've replaced the Needle and Seat twice since 2018, the Needle tips are rubber instead of Viton making them susceptible to Alcohol in the fuel build calcium deposits in the screen and. Lifting the motor and putting it back down again let the motor go back to full RPM and it works most of the rest of the day. Lately it been running out the overflow so I took the VST off cleaned it and polished the seat with rubbing compound. I would like to replace the needle with a harder Viton tip if I can find one. It's looks like a Mikuni Needle and Seat.
