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07-27-2009, 06:45 PM
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#1 (permalink)
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Junior Member
Join Date: Feb 2009
Location: Rocky Point, Mexico
Posts: 28
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Whats the most likely Culprit
Working on my friends 92 FLH with a Screaming Eagle ignition black box(cdi, brain, whathaveu). It starts up and runs fine, just after 1/2 to a full hour of riding does it cut out. It dies right out no sputtering or anything else just like somebody turned off the switch, tach goes to zero. Pretty sure it is not the ign. coil, cause the tach went out. The bike will start up again after a period of cooling off i.e. 10 to 20 min.
Thanks for any and all help
Thure
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07-27-2009, 07:19 PM
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#2 (permalink)
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The Northern Redneck
Join Date: Mar 2009
Location: Alaskafornia
Posts: 4,571
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check your gas tank...the vent might be clogged ...seen it happen a bunch of times, tank lets out gas without venting and creates a vacuum in the tank till no more gas can go out...cracking the cap release it and away you go....the vent in the cap goes bad....clogs up...
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HERD Member # 000015
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07-27-2009, 07:20 PM
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#3 (permalink)
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Protagonist
Join Date: Mar 2008
Location: Kentucky
Posts: 1,162
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check to make sure your battery connections are tight.. check your grounds.. that may help
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People are more violently opposed to fur than leather because it's safer to harass rich women than motorcycle gangs.
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07-27-2009, 08:49 PM
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#4 (permalink)
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Mentally unstable.
Join Date: Jun 2008
Location: Pennsyltucky
Posts: 6,627
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Module (ignition) or the coil. There's a coil testing procedure in the tech "electrical" section. If it turns off like a light switch , it's definitely electrical/ignition.
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HERD meber #10
DISCLAIMER: Any information, advice or child raising tips I give on this forum should be taken with a grain of salt, 8 hours sleep and at least 6 beers.
Following my instructions will likely lead to death, mental retardation and/or bodily injury, consistant with eating lead-based paint chips, and by doing so, will release me, my family and my dog from any legal action(s) for listening to anything I recommended. 
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07-27-2009, 09:31 PM
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#5 (permalink)
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Junior Member
Join Date: Feb 2009
Location: Rocky Point, Mexico
Posts: 28
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How do I check the crankposition sensor, can that be done with an ohmmeter?
Thanks Thure
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07-27-2009, 11:34 PM
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#6 (permalink)
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ΜΟλΩΝ λΑβέ
Join Date: Oct 2006
Location: Kansas City
Posts: 2,572
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The '92s didn't have a crank position sensor.
Crank position sensors weren't used until the Twin Cam motors.
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Quote:
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Originally Posted by Thomas Jefferson
"Tyranny is defined as that which is legal for the government but illegal for the citizenry."
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'05 Carbed Night Train
111 rwhp, 112 rwtq
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07-30-2009, 08:21 AM
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#7 (permalink)
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senior citizen
Join Date: Jun 2009
Location: Port Washington , WI
Posts: 701
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Quote:
Originally Posted by mthure
Working on my friends 92 FLH with a Screaming Eagle ignition black box(cdi, brain, whathaveu). It starts up and runs fine, just after 1/2 to a full hour of riding does it cut out. It dies right out no sputtering or anything else just like somebody turned off the switch, tach goes to zero. Pretty sure it is not the ign. coil, cause the tach went out. The bike will start up again after a period of cooling off i.e. 10 to 20 min.
Thanks for any and all help
Thure
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The tach went out ? ... The tach wire ( pink ) connects to the neg. side of the coil , if the tach goes out or has an intermittant problem it can ground the coil out and cause the symptom you described . |
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07-30-2009, 08:23 AM
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#8 (permalink)
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Mentally unstable.
Join Date: Jun 2008
Location: Pennsyltucky
Posts: 6,627
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Quote:
Originally Posted by SCHMIDTYS
The tach went out ? ... The tach wire ( pink ) connects to the neg. side of the coil , if the tach goes out or has an intermittant problem it can ground the coil out and cause the symptom you described .
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Agreed. I've also seen a tach short, and cause the same issue....cause it's connected to the coil.
__________________
HERD meber #10
DISCLAIMER: Any information, advice or child raising tips I give on this forum should be taken with a grain of salt, 8 hours sleep and at least 6 beers.
Following my instructions will likely lead to death, mental retardation and/or bodily injury, consistant with eating lead-based paint chips, and by doing so, will release me, my family and my dog from any legal action(s) for listening to anything I recommended.
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07-30-2009, 08:32 AM
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#9 (permalink)
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CHOPPA RIDN MADNESS
Join Date: Sep 2008
Location: In a van down by the river
Posts: 5,634
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when it dies turn it over and see if it has spark if not bingo,if yes fuel,then pull your fuel line and see if you got fuel to the carb if so check your float set up or like said vapor lock loosen your gas cap and see if it fires up ,couple really simple test so easy a caveman........goodluck
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Except riding my Sled. 
"If you treat me good,Ill treat you better.
If you treat me bad Ill treat you Worse."
Lifes journay is not to arrive at the grave safely
in a well preserved body,but to skid in sideways,totaly worn out,shouting"Holy Shit what a fukin ride"...
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