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| *Vultures Knob>>>Bike Lights |
Can someone help me with an electerical problem on a scooter someone gave me? |
all the bulbs were burned out, i replaced them. they worked, yea! 2 days later they all burned out again. 1rst the headlight then the blinkers then the tail light & finally the brake lights. i took the shell off and looked for a bare wire, for a short, but could find nothing. it runs great, but the only thing that works is the horn and speedometer. it is a THUNDER BIKE if that helps. it also has electeric start, tach, gas guage etc. which none of it works. It`s because the BATTERY IS DEAD! WHICH motor does it have anyway? The scooter charges AC power which is converted to DC thru it`s "regular" (but it`s really just a diode pack). There is enough power to light the headlight and taillight with some left over to keep the battery charged calculated on an average amount of riding. at low idle the lights work off the battery, when riding (high idle) the lights are running plus there is extra power being fed into the battery to re-charge it, and regulate the voltage for the lights. The battery keeps it all at an even 12volts, NOT the diode pack. THIS IS NOT LIKE A CAR!! So, with a dead battery or the fuse to the battery blown, all the "extra" charge is not going into the battery, and it makes your lights extra bright , thus burning them out one at a time. Source(s): Been homebuilding scooters for 10 years. STREET LEGAL ONES, and also converting non-battery Vespas to "battery equipped" to allow brighter brakelights and DOT turnsignals. I had a problem like that once,i was using the wrong voltage bulbs.Use bulbs with a higher voltage even if you think you are putting the right ones in. Most likely the charging system is putting out too much voltage. A similar thing used to happen on an old dirt bike I had - if I missed a shift and over-revved the engine, the headlight would burn out. I eventually built a solid-state voltage regulator. Before replacing the bulbs again, have the voltage level checked on the battery while running and revving up the engine. If it goes much above ~14.7 volts, you may need a new voltage regulator, if it has one to begin with, or if not, you may need to get one. Also, be sure the battery is in good shape - if it isn't, it's possible that it's not providing enough load on the charging system when you rev up the engine. |
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