ItsShowtime... Yeah you will need to get to the vent line to depressure the tank
before pulling the fueler

(.. You can just use a "T" between the tank and check
valve and just let it hang between the engine and firewall... I used J'tec plug
type fillers on the top of the cowlon both the fuel lines.... Yet I still had a few
spraying of fuel mishaps

(....
I know they moved the regulator to get more cooling on the YS 63S... But make
sure you make big intake and exhaust cutouts in the cowl for the needed cooling
on the YS..... And Remember.... Vent first..... Then fuel

)))))))))