You can adapt your ezstart to the m16.
http://pages.sbcglobal.net/acardenas/Modifications.htm
Just leave the pullstart on until it breaks.
It will break.
If you don't know how to fix it,or don't want to spend$20 for a new one,then put the ezstart on.
My pullstart has broke like 4 or 5 times and I have less than a gallon thru it.