In cases of us less competent less equipped ordinary owners with obsolete Norton parts if ya break a cable, Wesley took a spark plug nipple cap off, bored hole in side with pocket knife so enough cable strands could pass through to bend over and trap when cap screwed onto cable to reinstall in lever hole. Was fascinating watching. Noticed it was still there a couple years of freq use before died last Jan. Its possible to ride and shift w/o clutch I found but tests competency skills and bravery. Thinking a head cheap skates carry a cable end repair kit. Main trick of clutch ease is getting stack height just so the diaphram retainer circlip ring just barely clears its notch against clutch plate stack to install. Smart owners measure whole stack 1st, us slackard lazy ones go by trial/error feel then might measure. Usually different thickness pressure plated required. Eat ya heart out Ludwig Ms Peel had two thicknesses of these machined out of lighter mass Alu.
Can also grind a bit off end of slot of ball pviot lever to get cable end on/off easier but not difficult as is. With near ideal stack thickness, only need to back off rod adjuster ~1/8th-ish turn for more lever pull efficiency sooner. Should feel like a compound bow - stronger strain at first grip but once pulled fully distinctly less to hold. Some even grease cable ends sheeze.
