If battery power is OK, then next up is:
- verify petcock is operational, only flows when vacuum applied, then thorough carb-cleaning
- clear out all jets and bleed holes with guitar wire of matching size
- clear out fuel circuits, these are hidden secret passages in carb body that supplies fuel to jets
- clear out passages to carb venturi
- verify float valves are working, if not, replace
- check and set float level
- replace pilot o-rings and float bowl seals as necessary
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