I have a Weedeater We261 with a B&S 12S907 motor. The motor is a no prime with no throttle. Starts easy but only idles. When I got it the flywheel key was sheared and after replacing, it still wouldn't start. Had a really weak to non existing spark so I replaced the coil. Starts right up now but only idles. Can operate the throttle by hand and it revs fine. What should I look for in the governor?