coyote888
Member
i have a 49cc that runs around 300F upper cylinder temp and 290s head temp cruising. people say this is way too hot but it seems like this is where the engine wants to run. i have adjusted the carb to run as rich as possible, plugged all potential carb leaks and yet it still runs no differently than when it was running lean. its a relatively new engine so could this be a factor? any advice to drop the temp a little? im only about 650 feet above sea level. give or take. ambient temp is 80.