Got what I hope was a good deal on a Coleman 400 aka Hisun HS400. Previous owner returned it to TSC and it wouldn’t start. I pulled the plug and it’s fouled. Cleaned it and it sputtered, but fouled again. I did test for spark after cleaning and had a nice white spark. Plug is an NGK R DR8EA. I will be getting a new plug and a fuel filter to install inline. I was going to open up the fuel tank and check for debris and drain the tank as I have no clue how old the current gas is. Currently it won’t start so just trying to get it going so I can trouble shoot the rest. My plan. Pull airbox and check for obstructions and clogged filters, replace. Crank and check plug. Disconnect 02 sensor and see if it starts Check timing chain tension Any other things I should look at. The plugs seem to have some oil, but that could be carbon? Sent from my iPhone using Tapatalk