1st Generation Specific 1979-1985 Discussion

12a Starting Problem

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Old 08-03-2009, 09:59 AM
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I have a 12a with a mild street port and a 48IDA in my baja bug. I’m now having problem’s starting it cold. It seems like I’m cranking it over for a good minute before it even sound like it’s starting to fire. I can look at my tack as I’m turning it over and it doesn’t even look like its firing. Then after about a min you can hear the motor and see it on the tack that it’s starting to fire. Then finally it starts and runs great. I haven’t done anything to the motor, I’ve checked spark on the plugs and it looks good. I have a fully charged blue top optimum battery, can anyone give me some inside to what the problem could be?
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Old 08-04-2009, 07:41 PM
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Fuel delivery is what it sounds like to me.
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Old 08-04-2009, 10:14 PM
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Good idea, but my accelerator pump is working good and when overriding it by push the gas i see fuel going into the motor. So i don't think it's that easy! But thanks for the replay! Any other thoughts guys?
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Old 08-05-2009, 10:53 PM
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yeah weber has no choke, so it takes a pump or two
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Old 08-09-2009, 09:15 PM
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do you have an inline regulator? for my weber i have it set to 4 lbs of pressure.
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Old 08-10-2009, 08:13 PM
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Originally Posted by Codeblue
do you have an inline regulator? for my weber i have it set to 4 lbs of pressure.


I do have a regulator but I haven't made any changes to it, and the problem just started. I'm seeing fuel shooting down into the carb, but just a Bitch to start. It almost seems like something possible with my tack/coils. If checked spark on both coils and all plugs and it looks good. It turns over for about 30-60sec before even sounding like its firing. Could it be a bad seal and when it finally starts pumping the oil into the rotor housings that helps it create the seal and starts firing? When I finally get it started it runs like a champ! **** it don't no, I sure hope that's not the problem.
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