I have a 93 timberwolf 2wd that will not run. I have installed a new spark plug,air filter,carb rebuild kit and set settings back to factory on the carb. I also cleaned the carb thoroughly. It will only fire once if I hold the throttle all the way back to full throttle and then release it while using the electric start. It does not matter where the choke setting is. Please let me know of any ideas.