Hi, im new here. I have an 04 LT-Z250 and its been a great quad and i have kept up on regular oil changes, spark plug changes, adjustments, etc. Iv'e been having this problem where the header right where the exhaust comes out of the engine and goes into a bend, glows red hot. I have no explanation for it as this happens even when just simply warming up the quad with the choke on. It will do it after only just maybe 3 minutes of riding, and not revving or going hard on it at all. Sometimes it will do it when warming up. I tightened the intake clamps and made sure there is no leaks, im not sure if the valves are in adjustment yet but i did adjust them last year. I did a compression test and it came in a little low with the pressure fluctuating on the way up. it came in at about 160 when in the manual it says it shouldn't be under 171. I personally think it may be a head gasket leak as i have noticed a decrease in power since the problem. I could use some help and any feedback will be great. Thank you!