B&S 303777 wont run after new rings

[sgkent]

the best solution would be to find a mentor who can help and oversee your work. The exhaust glowing red might indicate a cam timing issue where the heat is going out the exhaust instead of being harvested for power first. If is is a two or more cylinder engine, it can be that one cylinder is not firing and the waste fuel and gasses are being burned in the exhaust stack instead. A really lean mixture can also extend the burn into the exhaust stack, so check for vacuum leaks.