SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: Wild west jet on August 25, 2017, 09:01:20 PM
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I have a question. I have a ford 460 with holley 750 dp. When I drop in water, turn key on, I can hear fuel pump pushing fuel to carb. Wait 5 seconds or so then I light her up......but she don't light. After approx. 5 to 10 attempts she fires. Runs great. Then the rest of the day she starts no problems. Is this because there is no choke or is there a choke??? Is there anything I can do to remedy this problem. It's a pain sitting in marina trying to get boat to fire Not to mention a bit embarrassing. Thanks for any input. :mad:
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What's ur regulator set at ? Should be set to 5-6 psi . Don't wait 5-6 seconds just fire it up as soon as u turn the key
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I have a question. I have a ford 460 with holley 750 dp. When I drop in water, turn key on, I can hear fuel pump pushing fuel to carb. Wait 5 seconds or so then I light her up......but she don't light. After approx. 5 to 10 attempts she fires. Runs great. Then the rest of the day she starts no problems. Is this because there is no choke or is there a choke??? Is there anything I can do to remedy this problem. It's a pain sitting in marina trying to get boat to fire Not to mention a bit embarrassing. Thanks for any input. :mad:
So, are you pumping the throttle at all?
Mine takes 1-2 pumps when its cold (not having been run that day), and 1/2 a pump (more of a bump) if it has been run earlier.
Chokeless boats here, too, and electric fuel pump.
BTW, what Ignition system?
Dan'l
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dont mean to thread jack but i have the same problem.. sometimes i have to poor a little fuel down the carb ans hold it full throttle just for it to want to start.. i dont get fuel psi until a few seconds after start up.. tips?
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Unfortunately no fuel pressure guage. Plan to install this winter. I have to pump several times. I have the red msd ignition with msd wire. Again this is just original light up.
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Single carb on a tunnel ram is not the greatest fuel distrabution. Make sure the squirter jets are working properly. If so it might be just not enough fuel to ALL the cylinders.
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I'll check this weekend. Just bought a new Qt 950 carb. Maybe that will help. I will also turn key on and give foot throttle 2 big pumps.
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I'll check this weekend. Just bought a new Qt 950 carb. Maybe that will help. I will also turn key on and give foot throttle 2 big pumps.
Try to push the accelerator pump down 1 or 2 times then fire it up ,
It might have a bad accelerator pump diafram
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Check your timing as well.
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Ok. 2 big pumps plus letting fuel pump run a little longer upon turning key to halfway she lights up. Thanks guys :thumbup: