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heard alot about them old free air sleds. the only vintage sleds i have owned were fan cooled. Is it true you cant run a f/a when it is warmer than 15 degrees out? is there anything i should watch for?
 

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free airs like it cold..... and like to be kept moving.

correct spark plug and fuel / oil ratio are very important.

carbs need to be clean and adjusted correctly.

they can be fussy when it gets above 40 degrees.

i saw gas boil in an old tnt 440 f/a i owned.
 
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