Mercury 2000 15hp 4 stoke Almost Stalling on take off

Sonriz

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Joined
Jul 28, 2016
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Just pick up a used boat and motor package, starts okay Idea oaky but when I need to take off as I increase the gas ( 1 = low level ) it wants to stall ( about the 3 level )but if I increase the gas faster it goes okay, when I going to other end of lake it runs okay at top speed ( 10 is top speed) , if I go trolling it's okay , but as soon I increase the speed ( between 3 and 4 )it almost stalls so quickly move it to 4 then it's okay.
what do I need to correct this?
 
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