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01 Dyna Wont Start

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Old Jul 5, 2011 | 10:31 AM
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Default 01 Dyna Wont Start

I have a 2001 FXD that wont start. It is a carb system. Im getting the basic air, fuel and fire. I have changed the crank position sensor but that was a no go. Any help will be great.
 
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Old Jul 5, 2011 | 10:42 AM
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more info would help.. is it cranking over, is it trying to start, is it cranking fast,slow,normal? what happend to make it stop? is it out of gas?
 
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Old Jul 5, 2011 | 10:47 AM
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If you have a spare/old ignition module try plugging it in and see if the bike will fire up.

~
 
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Old Jul 5, 2011 | 11:05 AM
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We were on a poker run it was like 100 outside, we stop for a bit to let the bikes cool off, when we went to leave it cranked over back fired and hasnt hit a lick since. It turns over normal. It has a full tank of gas.
 
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Old Jul 5, 2011 | 04:18 PM
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something is in the carb sounds like to me, take the float out and clean the needle

and if that dont work, jump a 12v positive to the bottome bolt on the coil,(3/8ths i think) that will tell you if the problem is in the ignition module no need to replace it to check, these carbed bikes will run like that...or if you have a voltage meter you can check the volts on that bolt
 

Last edited by fxdx-fly-by; Jul 5, 2011 at 04:22 PM.
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Old Jul 5, 2011 | 10:17 PM
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Well, if you truly have air, spark and fuel (in the proper ratio) the only thing left is timing. You timing chain(s) may have broken or jumped out of time. Check for compression.
 
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Old Jul 5, 2011 | 11:35 PM
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Had this problem a while ago but could obviously be different to yours. In behind the fuel tap is there is a rubber L shaped boot that connects to the fuel tap, I thnk it has something to do with the vaccuum(?). When I was having problems with the same symptoms you seem to be having I found that the rubber boot was weathered and cracked and not allowing to bike to fire. See if its connected to start with. Worth a shot or you could have vapour lock.
 
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Old Jul 5, 2011 | 11:56 PM
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Originally Posted by Deadwood
Had this problem a while ago but could obviously be different to yours. In behind the fuel tap is there is a rubber L shaped boot that connects to the fuel tap, I thnk it has something to do with the vaccuum(?). When I was having problems with the same symptoms you seem to be having I found that the rubber boot was weathered and cracked and not allowing to bike to fire. See if its connected to start with. Worth a shot or you could have vapour lock.
Yup. Had the same thing happen to me at a stop light years ago. The vacuum hose came loose (vacuum operated petcock). One good way to find out is to remove the air cleaner and see if the accel pump is working.
 
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Old Jul 6, 2011 | 08:19 AM
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Originally Posted by greggreen
Well, if you truly have air, spark and fuel (in the proper ratio) the only thing left is timing. You timing chain(s) may have broken or jumped out of time. Check for compression.
+1 Exactly.
 
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Old Jul 6, 2011 | 04:18 PM
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I have taken the Cam cover off and inspected the chains and they are not broke and the tensioners are good.
 
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