This is as 20 kw generac-natural gas. Just changed the battery and reset all time of day and excercise time, all indications on the monitor are normal. Engine will turn over/crank but will not start at excercise time. Unable to to manually start engine until I remove the air filter cover and air filter (new air filter). Appears to be an air flow/fuel mixture problem. This occured about two years ago when I changed the battery and was corrected by factory service personnel by adjusting natural gas flow. Can't relate the battery to any gas flow problem - need some help.

Electrical Supplies - Generac