well thanks for all the ideas. the other mourning having coffee with the gezzer bunch at micky d's, one of the guys offered me a car starter, it was a small import, i took it home and tested it, it turned the right way, made up a handle setup bored a 1/4 -18 hole in the shaft put on a big sullivan cone and hooked a door bell button to the solenoid, 12v worked great up to 42 cc's. 50 or better not so good, hooked up 24v and fired my mac 90cc, but, secord try broke the bolt holding the cone, so i tapped it out to 5/16-20 and used and aircraft grade bolt to hold the cone on. starter to start my big engines 25 buck, flying the big airplane priceless. thanks again