kohler cv23s problems I have two seperate questions that I need help with. On the first engine the charging systems will only work if the mower s at about 1/3 throttle. I replaced the flywheel stator and voltage regulator so everything is new.If you play with the throttle it will charge in a very small range which is about 1/3 of full throttle. On the second engine I have no fire on either cylinder. I was backing the mower of the trailer yesterday and it just shut down.