I just got my bike, the main fuse has been replaced with a resetable braker, the breaker overheats and the bike dies and will not be able to restart until the breaker is cold again, but the breaker heats up as soon as it is placed in the bike and drains the bikes new battery, any ideas?
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Re: fuse blowing = total electrical failure
The resetable breaker could be of little amps which cannot take the load of the electricals of your bike, thus its overheating and trips off.
Surprising though it also drains the battery.
There could be some kind of a short in the wiring somewhere.
Why did they replace the main fuse in the first place? Was there any kind of problem to the electricals thn?
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Hi Anonymous, you have a hard/dead short that should be easy to find generally they are the easiest. Time to get out your test light and start tracking the wire from the power side of the switch, circuit breaker or the blown fuse receiver, when the test light quits lighting you are very close to your short. For a free wiring diagram please visit the website below and good luck. Harley Davidson Wiring Diagrams and Schematics
You can add the breaker. The key is total electric use. As long as total consumption does not exceed amps shown on main breaker, then the new 40A breaker installation is ok. If total consumption exceeds main breaker, then the main breaker will start to get hot and then trip. http://waterheatertimer.org/How-to-install-a-subpanel.html
Put hand on main breaker and feel for warmth. The main should not feel warm. Consider upgrading to 150A or 200A service.
You don't have a "breaker box" on your Softail. You do have a main breaker that is rated at 30 amps. Then you have three or four more that are usually rated between 10 and 15 amps. A circuit breaker is a thermo-electrical device. If more current flows through the device than it is rated to handle, it will heat a bi-metal strip that will cause the breaker to "break". Once it "breaks", the current flow stops, the strip cools off, and the breaker resets. If the ignition switch is still on and the current draw still exceeds the breaker's rating, it will trip again. It will continue to do this until the switch is turned off or the reason for the excessive current draw remedied. If the breaker is tripped too many times, it will quit working. It is designed to protect a circuit and continously break and reset like a turn signal flasher.
It sounds like you're tripping the main breaker. The main breaker would be tripping due to an electrical short. Since you didn't mention anything about a fuse blowing, I'm going to assume that the short is occurring in an "unfused" circuit. Check the starter wires. I've read a post on this forum that at least one person had the problem of the wires behind the rear cylinder going to the starter getting hot and shorting out tripping the main breaker.
Have you added any additional accessories to the bike? If so, you could have raised the total current requirement of the bike with everything running. This could cause the main breaker to trip. Although I'm thoroughly familiar with your model of bike, Harley usually uses a breaker for the main circuit protection then going to fuses for individual circuit protection. If the main breaker is rated at 30 amps and you're drawing a constant 28, almost anything could change temporarily to cause you to exceed the 30 amp rating of the circuit breaker. A circuit breaker uses a bi-metal strip that heats up and breaks the circuit. It usually takes just a little while for the bi-metal strip to cool and then "reset" the circuit.
The next time it does this, notice if he headlight goes out. If it's the main breaker, the light will go out. If not, you're dealing with something that is smaller although just as aggreviating. You'll have to try to figure out what is still working when the bike quits. I think you have several fuses that are labeled what they control like the ignition, lights, and whatever else. Notice which circuits are still working to determine what circuit is not working. Being no fuses are blowing, it's not a short circuit, it's a momentary open circuit or an intentional electrical shutdown to protect something.
It sounds like something is tripping your main circuit breaker. A circuit breaker will act like that. When something shorts out, it will cause a high current draw which causes the element in the circuit breaker to heat up and trip. Once it trips, it takes a few minutes for it to cool but once it cools, it resets itself. I prefer this to a fuse which blows and then you've got to have a replacement. If you don't have a replacement, you're just stuck there until you find one.
Now, you may have a short which is not unusual on a dresser since there are so many wires running to the front end under the fairing. Look for a bare wire right where the wires go into the fairing from the frame. There is a lot of flexing motion at that point and a high probablility of a wire rubbed bare.
Have you added any extra accessories to the bike? If so, you may have overloaded the main circuit. Seems that bike has a 30 amp main breaker in it. If you added another set of highway lights or something like that, you may have exceeded the maximum current handling capability of the wiring harness and the breaker is tripping to protect the harness.
If you have a wiring diagram, check for devices that run off the main breaker only. The rest of the stuff should have it's own fuses and if you're not blowing any of those, it sounds like something on the main breaker alone.
Check the chrome cover that covers your igniton coil. I've seen them come loose, fall down onto the coil and short the igniton out as well. When the engine stops running. the thing will move and unshort the short.
From your explanation it sure sounds electricals, but surprising to hve a total failure to the electricals and thn it reappears after 30seconds!
Best would be to go through the wiring especially frm the battery onwards, the fuse box .
Since it is totally disappearing it should be a fault to those main wires could be lose connections somewhere!.
Hope this helps.