Can anyone tell me where I might be able to obtain a service manual for a 6.0 horsepower L head Tecumsen Victor XL/C engine model VLV126? I just purchased a used DR Power Wagon and after cleaning the carburetor I can't get it to idle without manually pulling back on the governor lever. I know these are touchy adjustments and I'm hoping a service manual would give me some help. Thanks in advance for anyone that can help me.