Carb problems

Thanks Red Fish. I will try that first but I think Trail Beast may have hit the problem with the heat control valve. After checking I think it is not working. Trouble is - How do you get to it? Barely room for and inspection mirror. Will I have to remove the manifold? Or pull the engine. And, is there one on the driver side manifold? Can't see one. And lastly - are p-arts still available? Any help would be appreciated. Ken