Exhaust on Arctic Cat glowing red hot!!
for a quick check of ur air fuel mix after your done with the carbs, take it out and run it wide open for a short run, only needs to be 1/2 to 1 mile run, take the plug out and look at the color of the porcelin around the center electrode. u want light brown, white is lean, black is rich.
I dont think the wrong plug or oil mix is going to give you that hot of exhaust but you never no...
Could be a slightly plugged jet, a hole in a carb boot. Whatever is causing it, either you gas supply has been slightly restricted or something is allowing more air into the mixture.
Find the problem and fix it before it burns down.
Gauges only work some of the time. In reality, your temp gauge only measures the temp of the coolant that cools the heads and jugs. It doesn't tell you the temp of the exhaust, which is what would tell you of a lean condition. This is why burn downs smoke a piston instead of the heads. A temp gauge is more inclined to warn you of a failure in the cooling system.