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HARLEY DAVIDSON FXDX (Read 181 times)

Jamey

Super Nerd
Picogroup

Offline

Learning to Nerd

Posts: 816

Ventura
California
USA
Gender: male

HARLEY DAVIDSON FXDX
Sep 7^th, 2017 at 12:08pm

Hi guys, one of my technicians came to work this morning pushing his bike. It is a 2001 FXDX 88 cid. The motor is built.
It will fire up and die. Here is a capture of the CKP and secondary ignition. I think it is all fine, but this is the first HD or motor cycle I have ever scoped. I looked at a few here in the forums, but I am thinking the problem is not Ignition related. When it starts, it fires up, then just fades out, as the capture shows. He said there is a vacuum switch that fails and will not deliver fuel, we applied vacuum to it and still the same. I tried to run it on alternate fuel (brake clean) and it will not go. I don't even want to try starting fluid Shocked

Any advise would be appreciated.

Harley-Davidson__2001_20170907-0002.psdata (9833 KB | )

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Jamey Super Nerd Picogroup Offline Learning to Nerd Posts: 816 Ventura California USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #1 - Sep 8^th, 2017 at 7:54pm He took his bike home. Found out that he broke an exhaust spring!
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Spence LSD Guide Picogroup Offline Posts: 8,025 Jeffersonville Pennsylvania USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #2 - Sep 9^th, 2017 at 8:57am Jamey out of curiosity was it the front cylinder?
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Jamey Super Nerd Picogroup Offline Learning to Nerd Posts: 816 Ventura California USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #3 - Sep 10^th, 2017 at 3:24pm I will ask him Monday.
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Spence LSD Guide Picogroup Offline Posts: 8,025 Jeffersonville Pennsylvania USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #4 - Sep 10^th, 2017 at 4:57pm Jamey wrote on Sep 10^th, 2017 at 3:24pm: I will ask him Monday. Thanks
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Jamey Super Nerd Picogroup Offline Learning to Nerd Posts: 816 Ventura California USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #5 - Sep 11^th, 2017 at 8:21am He said it was the rear head. Exhaust valve spring.
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Spence LSD Guide Picogroup Offline Posts: 8,025 Jeffersonville Pennsylvania USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #6 - Sep 11^th, 2017 at 8:26am Jamey wrote on Sep 11^th, 2017 at 8:21am: He said it was the rear head. Exhaust valve spring. Thanks!
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Jamey Super Nerd Picogroup Offline Learning to Nerd Posts: 816 Ventura California USA Gender:	Re: HARLEY DAVIDSON FXDX Reply #7 - Sep 12^th, 2017 at 11:44am Evidently his bike was built with a "Bee hive" type spring. His rebuilder said...."uhh, we don't use those anymore " So he is ordering all new springs.
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