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Reload this Page Mighty demon 650 acting up

Carburetors Carb discussion and questions. Upgrading a Third Gen carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

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Old 02-04-2008, 10:32 AM   #1
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Mighty demon 650 acting up
During the summer my car started acting up. When i first put the new carb on it only took 2-3 pumps to get the car started. At the end of the summer it wouldnt start with 2-3pumps I had to hit the gas pedal to WOT until the car started ( only took about 10-15 seconds). Would it be time for a rebuild on the mighty demon ??
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Old 02-04-2008, 11:40 AM   #2
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Re: Mighty demon 650 acting up
are your plugs fouled out? Are the float bowls draining back over night and you're trying to start the engine without the carb filled? How's the timing? My carb car starts up within 3 seconds of cranking usually, so something isn't right on your setup.
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Old 02-04-2008, 11:47 AM   #3
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Re: Mighty demon 650 acting up
Plugs are fouled its been running rich since i got it and it has the stock jetting in it. timing is set at 36 degrees. And i dont think the bowls are draining.
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Old 02-04-2008, 01:46 PM   #4
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Re: Mighty demon 650 acting up
I think it's about time you tuned the carb and put a fresh set of plugs in.
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Old 02-04-2008, 02:01 PM   #5
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Re: Mighty demon 650 acting up
Think it just might be bad plugs ?
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Old 02-04-2008, 03:39 PM   #6
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Re: Mighty demon 650 acting up
no bad tune which fouls out the plugs. you need fresh plugs and to tune the carb.
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