Not Ranked
There's no real "choke" It has a variable venturi that slides up and down in the carb/mixer. It acts the same with the old one and the new one , (Impco 55) If you try and manually choke it down it will aaalllmmossst start. Just the slightest hint of starting fluid and it's running perfectly. I keep coming back to fuel volatility but the propane co. says no changes for ever.
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