I have a 24 horsepower Honda Beavertail 72in Long tail. Once the engine becomes warm operating at full throttle after 10 - 15 min of continuos run time engine quickly bogs down and dies. It will restart the engine and it runs to only repeat ten minutes later.

Noticed while running at night muffler was not glowing after 15 mins of use at full throttle. Then muffler chamber in the middle started to glow then grew to full glow then 1-2 inch blue flame appeared and quickly grew to 12 inch continous blue flame. Then engine boggs down and dies. Left engine off for 30 sec- 1 min restarted an repeat with in ten min If anyone has any answers or know why or how to fix this please advise.

FYI I live in the Texas City TX Area I run chevron or valero fuel, the gas pump does say fuel may contain 10% percent ethenol this is the same fuel I have always ran I Don't believe this is the cause.