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Author Message   Buellx1w Posted on Wednesday, April 10, 2013 - 06:49 pm:        I guess injectors are ruled out now. Checked for spark it appears strong. Now Im starting to think fuel pump. Or maybe the internal FP filter. I just replaced the FP like 6 months ago- has maybe 400 miles on it. Can I used the shrader value to test pressure? I'm not sure of the procedure.   Buellx1w Posted on Wednesday, April 10, 2013 - 11:07 pm:        I read the service manual and I don't have a FP guage. I disconnected the line at the filter and gas dripped out. Turned the key, pump ran a few seconds and no change- just dripped out . I put my finger on the hose and stopped the flow- turned the key pump fired up, and felt very little, if any pressure. Suspicious?   Greg_cifu Posted on Thursday, April 11, 2013 - 12:05 am:        Yeah, I'd say that's pretty suspicious. The system should have about 40 PSI. You can use an old style air conditioning gauge if you can find one (the old R12 type gauges). They have the same size fitting. It may be something wrong with the pickup in the tank. I haven't had my S3's pump out but, my 2000 Excelsior Henderson just crapped out on the side of the road like this. It turned out to be an o-ring on the pump assembly. It sealed the pump output to the plumbing and the o-ring just disintegrated with this alcohol filled fuel. A couple of new Viton o-rings and it was good as new.   Buellx1w Posted on Thursday, April 11, 2013 - 07:44 am:        Good advice thanks Greg. I'm gonna pull the pump AGAIN tonight.. I checked the reciept it was purchased last June..   Harleyelf Posted on Thursday, April 11, 2013 - 10:43 am:        There are threads on which automotive fuel pumps work. PM me if you want to swap my take-out in for a test - it was working when I converted to carburetor and I'm in Melbourne.   Kyrocket Posted on Thursday, April 11, 2013 - 12:12 pm:        Similar situation happened to me. Bike rode fine to the fuel station, quit and never started again for a while. Checked EVERYTHING, turned out it was a bad speedo sensor.   Buellx1w Posted on Thursday, April 11, 2013 - 01:17 pm:        There are threads on which automotive fuel pumps work. Yes I used one last June to buy this one! I think it was a Wesco? THanks   Kalali Posted on Thursday, April 11, 2013 - 01:37 pm:        Sorry if I missed this but do your hear the pump prime and still no pressure?   Phlegm Posted on Friday, April 12, 2013 - 01:58 am:        This happened to me last month. I replaced the regulator and the fuel filter on the fuel pump and it worked great. The fuel filter had turned a blackish color and I think pieces of the inside of it were clogging up the regulator. Regulator is 40 bucks and filter is 10. (Message edited by Phlegm on April 12, 2013)

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