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 :o
Any advise would be appreciated.

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He took his bike home. Found out that he broke an exhaust spring!  :-X

Jamey out of curiosity was it the front cylinder?

I will ask him Monday.

Jamey wrote on Sep 10^th, 2017 at 3:24pm:

I will ask him Monday.

Thanks

He said it was the rear head. Exhaust valve spring.

Jamey wrote on Sep 11^th, 2017 at 8:21am:

He said it was the rear head. Exhaust valve spring.

Thanks!

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.