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  #41  
Old 4th March 2012
Screw Loose Dan's Avatar
Screw Loose Dan Screw Loose Dan is offline
I think I like Sportsters
 
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Schwede gave great advice. Don't bother doing much else until you *fully* charge the battery, clean all the battery connections, ensure when you retighten the connections they are "wrench tight", and I would also suggest pulling the system and starter relay (replace if they have any signs of corrosion).

Since you are clearly having battery issues, continually bump starting it won't help. The fuel pump and ECM require a bit of energy. So, if your battery isn't charging you are continuously draining it. These batteries will die a premature death if you take them to nothing. And the ECM won't even try if the volts get too low.

I suspect the issue is one of the following - battery connections, relays, or battery. Of course, it's entirely possible you do more damage by thrashing it.
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  #42  
Old 13th May 2012
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powellsanmiguel powellsanmiguel is offline
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Thank you all again for today. Farley the Harley stopped in a gas station in RAISIN TX, and wouldn't start. I called Progressive, since they tow on my insurance and sat down.

About twenty minutes passed and a young couple came for gas, on a lovely bagger, and eventually asked why I was sitting rather than riding. And we began to trouble shoot; lights work, starter works, plenty gas, WTF? "It can't be too hard," although I was sure it could.

When we got to the fuses I saw those damn relays and a bulb shone on in my senile brain, "Those suckers fail, the result is just like this, and I bought a spare years ago when I read about the problem in the Xlforum!" Found relay, replaced it, its the lower one, and Farley started right up. Thanked the kid profusely, rode home.

And thank you again, one and all!
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  #43  
Old 14th May 2012
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Screw Loose Dan Screw Loose Dan is offline
I think I like Sportsters
 
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Glad Farley was able to go on without a tow. I think it might be a good idea to replace the relays as a maintenance item.
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  #44  
Old 14th May 2012
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Quite so, and a spare or two on board.
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  #45  
Old 21st October 2012
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I got a 2012 Iron with 53001 miles won't start just backfires like its out of time.
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  #46  
Old 21st October 2012
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Quote:
Originally Posted by Rocknvipe29 View Post
I got a 2012 Iron with 53001 miles won't start just backfires like its out of time.
That would normally make me think about the crank position sensor, but the rest of the story from your thread has me scratching my head.
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  #47  
Old 11th May 2013
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had the same relay problem a few months back and after pushing my bike 5 miles home and figuring out it was relay i now carry 2 spare relays with me at all time
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  #48  
Old 2nd October 2013
the1337aaron the1337aaron is offline
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Quote:
Originally Posted by Rocknvipe29 View Post
I got a 2012 Iron with 53001 miles won't start just backfires like its out of time.
how the hell did you put 53k miles on in one year?
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  #49  
Old 4th November 2015
hammer6315 hammer6315 is offline
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SPST single pole single throw
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  #50  
Old 21st January 2020
tussuck tussuck is offline
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Bike surges on and off when at steady throttle (more noticable at lower speeds)

Took me a month to sort this one out as no codes were thrown as the offending component had not failed 100% per-sec.

When going slow (say 30-40mph as opposed to highway speed) the bike would randomly surge a little bit or cutout a little bit. Very annoying. only really happens at low speed.

If you think about your Throttle Position Sensor which is on the left side of the throttle body (in reaility its just a glorified variable resistor) it spends a LOT of its life in the bottom 1/8th of the resistor range as we rarely ride at WOT. This eventually either makes this section dirty or even wears the carbon track out a bit. Either way the signal to the ECU gets messed up and results in an annoying surge.

You can clean with contact cleaner which might fix for a week, but replacement is the only permenant fix.
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