Manual fuel priming for the carburetor is not provided. Due to this, after long periods of storage and repairs, filling the float chamber required significant resources, including battery power, as well as my mental stress. I had to idle the engine to pray that the gasoline would be pumped before the battery drained. It was a 50/50 chance, and even in summer.
Winter is especially problematic without pre-priming fuel into the carburetor. I decided to install an electric pump in the system. Initially, I tried a simple method: adding an electric pump after the mechanical one, making them sequential.
In this setup, the mechanical pump would push fuel but create a blockage for the electric pump. The circuit proved non-functional.
I reinstalled it differently, with the electric pump parallel to the mechanical one without any valves or switches, and it works.
After long-term storage, I can open the hood, apply 12 volts to the pump, and hear when the fuel fills the float chamber by sound. After that, three pedal gas kicks are needed for a successful start.
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