Re: Getting gas and spark, still not starting
If you can shut the fuel off all together, that is make sure the engine will get no fuel what so ever, Remove the plug and crank it over several times to clean out the cylinder. Get a fresh plug. I can't tell you how many times I have seen a plug get wet and fire outside of the cylinder, but not fire under compression. Install new plug, and try to start with starting fluid. Don't overdo it on the starting fluid, it can be hard on an engine if used too much. Being that it is a gas instead of liquid you can eliminate the fouling. See if it will fire on the starting fluid. If it does you have a flooding problem. If it backfires on the fluid then you have a timing problem. If it will start or attempt too, then you know its flooding itself. I have had several engines that were stored, where the float was sticking and flooding, therefore fouling the plug causing backfires. I always change out a plug that has gotten excessively "wet" with fuel. Plugs don't last like they used too.