hesitation on takeoff

[laker2]

hey guy's my 79 175 starts great i warm it up no misses had a bad switch box last weekend replaced it , problem when i put it in gear it doesent stall but as i throttle up it wants to die off ,when i hit it hard. if i just give it to her nice and easy she takes of and away we go , have to check plugs again today after a run, bought [or stole] a complete motor for a spare, got it for a hundred bucks.any ideas on what to check next thanks

 

[Cogburn]

Re: hesitation on takeoff

You might want to try opening the idle mixture screws a bit to see if it will take off then.

 

[laker2]

Re: hesitation on takeoff

i tried it yesterday and if i hit the choke as i give it the gas away we go and no other issues, does this motor have some kind of accelerator pump thanks,it will sit and idle all day long

 

[Moody Blue]

Re: hesitation on takeoff

What you describe is a classic symptom of running too lean. As Cogburn mentioned, turn each of the idle mixture screws (on the carbs) out 1/4 turn (CCW) and try it again. If no difference, try another 1/4 turn out.