I have a Walker with a D600 diesel engine. First off does anyone know wereI can get a good repair manual? I have two diff. problems. First one is my mower will not start when cold with out a small shot of either. It smokes when trying to start so I guess it is getting fuel. Second after running for about 30 min. the mower will start to die like it is running out off fuel and then will continue on for a several min. and then repeat this again. Any info will be greatly appreciated. Also my temp runs around 210 deg. this does not seem right but I have never owned a diesel before.