How do you time the magneto on an Oliver hg Crawler with the 4 cyl Hercules engine. ? I ve been trying to start one that has spark and fuel and it will not hit at All! Makes me thing the timing has been fiddled with. Im gonna put new plugs in tomorrow and need to get it running bY then. I would try pulling it off but it spins over plenty fast enough with a 12 volt battery. When I was moving the throttle lever. It finally hit and died when the throttle lever was all the way back to the rear. I did pour about 1 gallon of fresh gas in it and it had about a quart of 2 year old gas in it. It is restored and has been in enclosed garage sitting for 3 years