Re: 98 75 yahama will not start
check spark, do a forum search on home made spark tester, test compression. the 20 dollar wally world gauge will be ok. if spark and compression are ok fix the fuel system.
I dont reccomend spraying fuel down the throat of a non running outboard.
not only can you easily flood it or possibly hydrolock it. visit a burn ward.
careful testing is always faster and easier that splatter gunning.