I have had it running for about a minute but I really dont know what Im doing. There is no cracks or breaks hat I have seen. Any questions please ask. The item “Stover hit miss engine” is in sale since Saturday, March 03, 2018. This item is in the category “Business & Industrial\Light Equipment & Tools\Stationary Engines\Engines”. The seller is “jdtoymancar” and is located in Acworth, Georgia. This item can’t be shipped, the buyer must pick up the item.