what's the gap rocker arms on a 79 yamaha 650?

Answer 1

This is for anyone that reads this.
Anyone that works on their own vehicle should own a shop manual.
Why trust answers you get from strangers on message boards, when you can have the answer to every one of your questions right in front of you.
Would you rather spend $30 for a worthwhile investment, or spend over $500 when you make a mistake?
Purchase a shop manual before they go out of print.
http://www.motocom.com/motorcycles/