Handy Bikes 1-614-299-0550 has a LOT of different throttles cables and YES!,CYB....they have KNARPS! LOL!
I have to confess I'd never heard `em called that though. I always called them universal cable ends or cable stops.
I think they're only 1.99 at Handy Bikes. I made a throttle cable for dellorto once by grinding down the end of abike brake cable. But that might not be as strong as the cable that's made for it. A Dellorto carb throttle cable is under 8 bucks at Handy Bikes. I usually carry a spare with my tools and a spare clutch cable. don-ohio