1977 Johnson 2 stroke 55hp starting issues

Tcj6509

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Jul 25, 2023
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Have a 1977 Johnson 55 hp two stroke,

Probably a dumbass question but here’s my issue.

Bought the boat few weeks ago came with a old metal gas can and a plastic gas can.

Everytime i clean the carbs it fires right up and will idle but once I turn it off it won’t restart. It wants to sounds like a backfire almost. Is my issue dirty gas from the older gas tanks? Good spark good compression. I used the plastic one he gave me added fresh fuel and mixed accordingly. Guarantee if I go out there and clean carbs it’s going to fire right up. Any help and suggestions! Sorry for my post just wanted some advice thanks
 
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