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I have an aluminum boat with a 1981 Mariner 40hp outboard and it usually take about 3-4 minutes to start the engine first thing in the morning. Once it starts, it runs great (like it can even pull a skier behiind it) and I can turn the motor off, fish about 4 hours and with a light twist can turn the motor back on. Does anyone know why it takes so long for me to start the motor first thing in the morning? I am thinking about replace the carburator. Is that nesessary and how much you think it will cost? Thanks for any advice.
 

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With starting and carb problems I start with some Sea Foam additive at maybe 2x the recomended ratio and a set of plugs, see what happens after a few outings then keep some of the additive in the gas mix especially when you store it.
 

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I had the same issue when I bought my used boat. The plugs looked great, but I bought new ones after two years and starting problems, and she starts great now. It's cheap and easy if haven't swapped em.
 
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