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please help...fuel pump issues

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Old Jun 5, 2009 | 10:33 PM
  #1  
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Default please help...fuel pump issues

I posted this in the Sportster forum, but its a little slow over there tonight....

To make a very long story short, my bike will not start and I had to be towed home from Ohio Bike Week today. The bike died three times while riding, the first two I got her fired back up and down the road, the third time, not so lucky

Upon first restart, the fuel pump could not be heard running after flipping run switch. I got down and checked pump fuse and it was good. The bike restarted after I switched the pump fuse with another fuse. I then proceeded to ride another 10 miles to where I was going. Bike was parked and started up fine after about 30 minutes. I rode not even 5 miles down the rode and the bike just died sitting in traffic. I again got down and checked the fuse and it was still good. I swapped it again, like before, and the bike re-fired. Drove another 10 miles heading home and the damn thing just quit while riding. Coasted to the side of the rode and tried swapping fuses again and this time the pump did nothing upon hitting the run switch. I swapped the fuses again and the pump would prime up but the bike would not fire. Now (after a few tries) the pump cannot be heard running at all. I had to finish my journey on the bed of a trailer.

Bike has gas, and a good battery. It turns over strong, just wont catch...

I have not had a chance to check much yet because I had to come to work. I have searched and found some info on a fuel pump tech article and also water damage to the fuse/relay block. Can anyone help me out and suggest what else to check when I get home tomorrow?
 
Old Jun 6, 2009 | 07:39 PM
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ok, I got out the meter, test light, and service manual tonight. I have NO power getting to the Fuse terminal for the fuel pump. All other fuses have power. I don't think its a relay because if i swap positions, I still get same results. There is continuity between relay and fuse as well as between the fuse and fuel pump plug in. Little to no corrosion on terminals because I keep them greased pretty good. I am lost and getting frustrated. ANy help?
 
Old Jun 6, 2009 | 08:27 PM
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You should check for shorts to ground. Both end of the wire being connected doesn't mean somewhere between isn't connected to something it shouldn't be, like the frame.
 
Old Jun 6, 2009 | 11:40 PM
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I had a relay go out on mine. I ended up changing all the relays just because. Bike has been fine since then.
 
Old Jun 6, 2009 | 11:43 PM
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Yea im thinking it is a bad relay the more I read on here. Not sure how to test them but they can't cost that much. How much did you pay for yours and can I get them at the auto parts store or is it a HD part?
 
Old Jun 7, 2009 | 12:24 PM
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thanks guys!! i got her back on the road this morning. Two new relays did the trick. I guess di-electric grease won't even save these things from going bad
 
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