motorcycle (Ducati S4) rec reg replaced as it overheaded and burnt out, new one gets very hot after 3 to 4 mins, is this normal or is it a sign of something else wrong?
2007-05-17 11:03:15 · 6 answers · asked by Jimbo 2 in Cars & Transportation ➔ Motorcycles
The regulator part of the reg/rec sends excess voltage to ground so your battery doesn't get over charged.
If there isn't a good connection to ground, the voltage would build up and over heat the unit.
Some bikes bolt the reg/rec directly to the frame. That's the ground. Sand and clean the frame so there's a good connection.
Some bikes the reg/rec is rubber mounted. A wire from the wire harness is used as ground. Make sure the connector's terminals are clean and not burned. Check that the ground wire has continuity to battery ground.
2007-05-17 11:38:10 · answer #1 · answered by guardrailjim 7 · 2⤊ 0⤋
Either you have a wiring problem or, more likely, your battery needs to be replaced.
The charging system can be a hard one to diagnose because the whole system works together - a fault in one component drags the others down with it. If your battery is dead, it'll want to be recharged all the time. Recharging the battery causes a high current draw through the reg/rec, which forces it to dissipate a lot of heat. If allowed to continue, the reg/rec will cook itself to death. Then the stator starts pumping unregulated current into an open circuit and dies its own painful death.
I could walk you through a check of the entire charging system, but for now I'll just say that putting a new battery into it will probably fix your problems.
2007-05-19 13:27:10 · answer #2 · answered by pik996 2 · 0⤊ 0⤋
I have no idea, so ignore anything I say.
On my motorcycle, there's a very good connection from the regulator/rectifier to the frame of the motorcycle. You may want to check yours, and if there's corrosion on your motorcycle frame at that point, you may want to clean it off.
On some motorcycles, the regulator rectifier housing has cooling fins. I don't know what would be entailed in adding this feature to your housing.
2007-05-17 18:20:36 · answer #3 · answered by Anonymous · 0⤊ 0⤋
check for an extremeley clean earth connection and that all of the connections are clean and tight.
Could be a battery problem low voltage, should have 13.2V accross the battery off load.Just check all your electrical connections to be sure.
2007-05-18 10:27:19 · answer #4 · answered by Anonymous · 0⤊ 0⤋
shot in the dark, but check to see if it is wired correctly. If you send a hot wire to the wrong place, you'll get that component hotter than hell....burn you kind of hot.
2007-05-18 13:29:39 · answer #5 · answered by Anonymous · 0⤊ 0⤋
reg rec's do get quite warm make sure its touching frame well so it disperses heat
2007-05-18 04:18:44 · answer #6 · answered by quasar 6 · 1⤊ 0⤋