new stator, 13 volts :( - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 20 (permalink) Old 05-09-2008, 06:45 PM Thread Starter
 
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new stator, 13 volts :(

new stator and im only getting 13 volts at 4000 rpms. whats the next thing to check ? voltage regulator ?? ran the bike about 100 miles with the new stator without problems so i think its charging, just would have like to seen something more like 14.3 volts.
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post #2 of 20 (permalink) Old 05-09-2008, 07:23 PM
 
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14.7v max around 13 if battery is fully charged, run the battery down a while and recheck it, ideally you need a load tester , but you need some exsperience in that area or you will be buying lots more componants.
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post #3 of 20 (permalink) Old 05-09-2008, 07:27 PM
 
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P;s What battery do you have? how old is it? and does it hold a charge? These are very importants factors when dealing with a charging system.
Most alternator problems are generated by over working the alternator, battery neglect, not always but mostly.
Make sure you have no voltage drop across the system, no more than half volt loss! My other vulcan has 169000 miles, same componants mostly, no mods and no hotrodding the electrical, bog standard.
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post #4 of 20 (permalink) Old 05-09-2008, 07:28 PM
 
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Thats right 169,000 not 6,900
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post #5 of 20 (permalink) Old 05-09-2008, 07:50 PM Thread Starter
 
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battery is in great shape holds a charge like a champ. 2 years old MF i cant remember the name of it now. fully charged. so 13 volts might be okay ?? i'm hoping so, i spent 3 days removing that stator. i want to ride it now. you got 169,000 with the orignal stator ??
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post #6 of 20 (permalink) Old 05-09-2008, 07:52 PM
 
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Yes!
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post #7 of 20 (permalink) Old 05-09-2008, 08:00 PM
 
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I also put as lot of alternators on police cars. Here is why!
Police cars are loaded to the gills with electrical loads, an example is;
All loads on, lights, sirens, beams,alley lights etc, A crown vic pulls 112 amps at idle, Police issue alternator is rated at 125 amps at 2000 rpm, and you cannot successfully use more than 75% of an alternator capacity at continuous use. At idle the alternator is only charging approx 100 amps.
I have been boosting the charging system with a 200 amp alternator;
What i am trying to get at, is that our vn750 system is not very heavy duty and it is so easy to burn the stator out with voltage drop, bad battery, weak cell etc and added lighting, and that may not be your case, but we have all seen alot of that on small bikes, you dont need it. Run some hallogens and be done with it. I havent heard of a stator burning out at 37000 miles.
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post #8 of 20 (permalink) Old 05-09-2008, 08:15 PM Thread Starter
 
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electric system doesn't have any extra load on it. i would really like to use a electric vest this winter. do you think the electric system can handle it. maybe a 60 watt vest.
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post #9 of 20 (permalink) Old 05-09-2008, 08:39 PM
 
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60 Watts divided by 14 volts = 4.29 amps;
Yes you will be ok, your alternator has approx 10 amps of headroom when the vehicle is running, then you will be up to your 75% continuous.
So after the jacket, you will have approx 5 amps left of headroom, and this is always a fluctuating figure, but very slightly.
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post #10 of 20 (permalink) Old 05-09-2008, 08:52 PM Thread Starter
 
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cool, over the summer i'll look into replacing some of the lights with led's, give myself some extra room.
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