studebaker, You did not mention the model year of your R65. That's always helpful info for those responding to your questions.
Check the forum section, "R65 Technical FAQs/Procedures" for a pdf format owners manual for 81-84 R65s. Should be somewhere on page 2.
After installing your new clutch cable, the clutch cable adjustment procedure begins at the transmission end of the cable. For proper operations, follow the manual's guide. It's considerably different than most other MCs but important to the like of your clutch and the cable itself.
You'll notice a specification for the exposed cable length... Snip a piece of coat hanger wire to the specified length and use this as a hi-tech measuring tool.