It will crank over but will not fire up. Sometimes it will crank up and run but once it is turned off it does not always crank right up. it just keep cranking over without firing up. what is the problem?
ypu might want to see if you have a good spark. i had a simaler ploblem with my 73 65hp evinrude. it turned out to be the choke not working right. but i am no mechanic , just a thought.