OK, Fixed the heat riser spring, and pulled the fuel pump, ordered parts from one supplier... backordered!(cancelled order). I'm cleaning the pump to get it ready for rebuild while I'm looking for parts @ the right price. I'm going to check that the carb float is clean and operating properly. I checked the oil and it is thinned because its diluted with gas. Should I just drain and change the oil without warming it up? Or can I run the motor (after I rebuild the fuel pump) to warm it before I change it? Thanks in advance for all the help