2007-08-10 04:23:17 · 8 answers · asked by David F 1 in Cars & Transportation ➔ Motorcycles
Depends on how deeply discharged the battery is. During normal use, a modern 3 phase alternator will replace the charge used by the starter motor during a 3 second crank over in about 10 minutes.
This is of course when the motor is spinning above 2500 RPM. Below 2500RPM, the battery will discharge due to the demands of the ignition system and field coil circuits in the alternator.
2007-08-10 05:24:03 · answer #1 · answered by Anonymous · 2⤊ 1⤋
My '73 Honda 750 can start with about a 25% (3volt out of 12) charge. The dynamo, which is usually under the front left "disc" of the engine case provides a constant recharge while the bike is in motion. This charge is sent to the Rectifier (under left side cover) which regulates the feed to the battery, much the way a charger would. It usually takes about an hour's ride. Without this, your bike won't have the power to run the ignition system (coils-> sparkplugs)
However; this may or may not work as well as a proper recharge. Check the electrolyte levels of each cell in the battery, topping them up with distilled water before attatching it to a charger. If you're still suffering power drains, then there's likely a simple problem such as a bad fuse or poor wire connection (usually grounding...look for a loose black wire with a ring connector. it should be attached to the frame by a bolt). You'll know these issues because the bike won't travel more than a few miles before sputtering out. Essentially battery power is just being poured out and not returned.
Good luck and keep the shiny side up!
2007-08-10 04:51:05 · answer #2 · answered by ettusparky 2 · 1⤊ 2⤋
hd's will require about 20 miles to charge a battery that barely started the bike. bike charging systems are small, and they dont put out as much current at once like car altenator's. short trips are hard on batteries also. high compression engines need alot of juice to kick em over.
2007-08-10 09:32:49 · answer #3 · answered by forktail_devil 5 · 0⤊ 1⤋
1
2017-03-05 04:13:01 · answer #4 · answered by ? 3 · 0⤊ 0⤋
This sort of depends on how dead the battery was. If the battery was fully charged and started on the first stroke , then maybe five minutes.(or less) If the battery was "dead" or had to spin over for five minutes before it fired, then I'd say ride it for an hour.
2007-08-10 04:35:44 · answer #5 · answered by jimanddottaylor 7 · 0⤊ 3⤋
Most bikes especialy sport bikes can not charge the battery from dead. Bikes don't have altornators like cars do. they are only designed to top off the charge. take it home and put it on the trickle charger.
2007-08-10 04:34:27 · answer #6 · answered by Busa rider 3 · 1⤊ 5⤋
As long as it takes to just stop and charge it while NOT riding?
2007-08-10 04:27:09 · answer #7 · answered by Anonymous · 1⤊ 6⤋
Depends on your speed
2007-08-10 04:32:23 · answer #8 · answered by Anonymous · 0⤊ 4⤋