the big kink in the snorkel wont be helping matters. originally this would have had a primerless cap and had the carby mounted the other way around with the snorkel facing out to the left side.

you could try moving the throttle lever to the other side of the handle bar and cut a new hole in the cowling for the snorkel to run through.

if it turns out the cable is damaged one from a newer victa should fit.