1988 FXSTC Problems
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Intermediate
Joined: Oct 2012
Posts: 40
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From: Dallas, Texas
I pulled the fender off, found about an inch of bare wire showing that looks like it had been rubbed off by the back tire. I patched it up and moved it to where it would rub anymore. Could this have been my problem?
Ultimate HDF Member
Joined: Jul 2007
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Could be, go see what it does now. I had a similar issue, turned out to be the coil. Might ask over in the evo section also.
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From: South Carolina
I feel that it does have something to do with heat. When it has a lot of air to cool it down when I'm riding on the highway it runs like a top but as soon as exit the highway and the amount of airflow reduces with the heat staying the same, it trips the CB....
I don`t think the bare wires you found were the problem either. If that bare wire caused an unintended short to ground, the 15 amp lighting breaker would have tripped before the 30 amp main breaker.
I think the main breaker is shot. It is a common automotive type breaker, any good auto parts store will have one.
Last edited by Dan89FLSTC; Mar 4, 2014 at 05:18 PM.
Seasoned HDF Member
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From: South Carolina
In order for a breaker to trip, the current flow in the circuit must be above the rated capacity of the breaker (but they can get weak and trip at lower than rated capacity, and that may very well be the problem).
Last edited by Dan89FLSTC; Mar 4, 2014 at 05:34 PM.
Seasoned HDF Member
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From: Farmington ,MS
A bad connection can cause all kinds of issues, but it will not cause a breaker to trip, because increased resistance will decrease the current flow in the circuit.
In order for a breaker to trip, the current flow in the circuit must be above the rated capacity of the breaker (but they can get weak and trip at lower than rated capacity, and that may very well be the problem).
In order for a breaker to trip, the current flow in the circuit must be above the rated capacity of the breaker (but they can get weak and trip at lower than rated capacity, and that may very well be the problem).
Not true...basic ohms law...a bad connection will cause reduced voltage, which will cause the amps to go up to supply the same wattage.
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From: South Carolina
You replaced all the breakers?
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Seasoned HDF Member
Joined: May 2008
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From: South Carolina
Basic ohms law, the only way you can cause current to increase is to either increase voltage, or decrease resistance...
Ohm's Law as a Predictor of Current
The current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit. The greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the battery voltage is increased and the resistance is decreased. In fact, a twofold increase in the battery voltage would lead to a twofold increase in the current (if all other factors are kept equal). And an increase in the resistance of the load by a factor of two would cause the current to decrease by a factor of two to one-half its original value.
Note:
This is from an electrical education website (I certainly can`t write that well
)
Ohm's Law as a Predictor of Current
The current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit. The greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the battery voltage is increased and the resistance is decreased. In fact, a twofold increase in the battery voltage would lead to a twofold increase in the current (if all other factors are kept equal). And an increase in the resistance of the load by a factor of two would cause the current to decrease by a factor of two to one-half its original value.
Note:
This is from an electrical education website (I certainly can`t write that well
)
Last edited by Dan89FLSTC; Mar 4, 2014 at 06:01 PM.
