SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: JB387 on June 12, 2017, 01:50:09 PM
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I have a 540 BBC with a 1050 Dominator 4500 series with a stage 3 build . The engine will fire but acts like it's starving for fuel and can only get it to idle at around 2500 to 3000 and up. just not a low idle it just dies out . Been playing with the air fuel mixture screws and can get it down to around 1500 for about a minute or two then it starts fall off with a inconsistent idle then dies . So my next guess was a vacuum leak issue so i have been chasing that. New gaskets on carb to plate and plate to intake and re torqued the intake . Still same issue . So I tried the soap and water around the intake and carb to see if it would lower the idle and show me a sign of a vacuum leak and nothing so then I also tried starting fluid around the same areas to see if the idle would jump up and still nothing .Any help would be great . Thanks in advance.
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Same problem just got back from river first time on new motor same thing idle 2000 to 3000 tried to adjust timing and as soon as I get a descent idle its only for about 10 seconds then it dies. hopefully somebody knows what's up. I'll follow your progress I hope it works out. see ya
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